Relationship between surface tension and intermolecular forces. ZTQ0ODhmNTkxNTU4MzA3MGE3NzlmZTg0YjRjMGJmMWY3ZWU5MTJiMTE5M2Zh 29. 45x45x2.3cm 5340-4 health-panorama.com d) The larger the molecule the larger the London forces, therefore, n-hexane has a larger boiling point than n-pentane. (14) @ 30oC: http://www.lcy.com.tw/msds/en/LCY020E.pdf. (A) CF4 (B) CCl4 (C) CBr4 (D) CI4 31. 1. David R. Lide, ed., CRC Press, Boca Raton, FL, 2004, except as noted. A solution contains a mixture of pentane and hexane at room temperature. c) The formamide has N-H bonds and so it is capable of hydrogen bonding. MDZkNDY3Njk2ZTZmZThlZGQxYmViODA4YmFiMmUxZGNlZTc1ZTY2Y2I4Y2Qz 26.28 dynes/cm at 10 C; 24.93 dynes/cm at 25 C; 22.69 dynes/cm at 50 C . Surface Tension Surface tension results from the net inward force experienced by the 30 . b) The 1-butanol can hydrogen bond together, but the 1,3-butanediol has two OH groups and can form even more hydrogen bonds than 1-butanol can. n-Butanol has been . The metabolic elimination rate was shown to be dependent on the atmospheric concn of n-pentane. Heat is released when water freezes and prevents the fruit from freezing. Diethyl ether (CH3CH2OCH2CH3) has dispersion forces and dipole-dipole forces. Both are liquids at room temperature. The concept of London dispersion forces is introduced by focusing on the momentary dipoles that appear within each molecule and the effect these forces have on surrounding molecules to account for the differences in attraction. Part 3 ends by asking students to rank the surface tension of a greater variety of molecules like methanol, ethanol, butanol, pentane, pentanol, hexane, hexanol, octane, octanol, decane, and decanol. It also has the highest vapor pressure. RAMP: Recognize hazards; Assess the risks of hazards; Minimize the risks of hazards; Prepare for emergencies. 29. 101 Mulberry St., Suite 2N The solution has a vapor pressure of 241 torr. Equations for calculating the surface tension of these n-alkanes . The surface tension of water at 25C is 70.4 dyne/cm. Though Pivot Interactives allows for complete customization of any activity, I found the default questions and overall flow to work out just fine. Since water has stronger intermolecular forces it should have a larger surface tension than acetone. Dimethyl ether, #"CH"_3"OCH"_3#, is a polar molecule. This is influenced by the intermolecular forces. Rank from highest to lowest viscosity, surface tension, and boiling point. 826 Home Street, Bronx, New York. Select the pair of compounds in which the substance with the higher vapor pressure at a given temperature is listed first. What size tire is on a 2011 Toyota Corolla? Butanol also has an energy content and heat of vaporisation more akin to Gasoline's, but on the other hand it has a higher surface tension and boiling point than most typical fuels, suggesting quite different atomization and in-cylinder mixture preparation processes. YTMxZTY5YjZhODZmYTUyNmI3NzM5Zjg1ZDViY2IwYWEwM2UxYjdmNDA2Zjk2 The temperature at which a liquid boils when the external pressure is exactly 1 atm (760 mm Hg) \text{1,2,3-propantriol}? ZTY1OTZkYzIyMTMyNDg3NzNkNjg5ZGQyYzg2YTNlZDBkNzNiYzE0MDg3Mjc2 How do I create a student interest survey? In the present study, the simultaneous and accurate determination of liquid viscosity and surface tension of the n-alkanes n-hexane (n-C 6 H 14), n-octane (n-C 8 H 18), n-decane (n-C 10 H 22), and n-hexadecane (n-C 16 H 34) by surface light scattering (SLS) in thermodynamic equilibrium is demonstrated.Measurements have been performed over a wide temperature range from 283.15 K up to 473.15 K . (iii) Larger molecules can make larger liquid droplets and therefore have lower surface tension. Strong dipole attraction Weak London force Based on this information, predict the surface tension ranking of the following substances Methanol (CH,OH Ethanol (CH OH Butanol ICH OH Pentane (CH) Pertanol (C,H,OH) Hexane (CH) Hexanol (CHOH - Octane CH) Octanol (CHITON . Molecules with high IMF also have high surface tensions. b. ethanol has the lowest vapor pressure and strongest intermolecular force due to hydrogen bonding c. heptane has lower vapor pressure than acetone due to London dispersion forces d. ethanol would have a higher boiling point than heptane e. acetone would have a higher boiling point than heptane 28. which has higher surface tension pentane or butanol 16 which has higher surface tension pentane or butanol. 1-butanol also has . Surface tension results from the higher potential energy of surface molecules compared to interior molecules in a liquid. 36C n-nonane, C 9H20 m.p. which has higher surface tension pentane or butanol. The dipole moment of ethanol is 1.69 D and the dipole moment of 1-butanol is 1.66 D. 1-butanol has higher viscosity and surface tension than ethanol. Using this expanded knowledge of chemical reactions, students are able to explain important biological and geophysical phenomena. The headlamps use the electric charge stored in the car battery. solubility, is lisa gretzky related to wayne . What can a doctor do for a hurt tailbone? 1.63. surface tension has a determining effect. Rank the evaporation rate (1 being highest . Identify which property liquids do not have in common with solids. CSDA Santa Barbara County Chapter's General Contractor of the Year 2014! the resistance of a liquid to spread out and increase its surface area. a. fax (603) 543-1334. How long has Coney Island in Fort Wayne Open? b) heptanoic acid. In particular, the present disclosure relates to an emulsion with enhanced stability, characterized in that the emulsion comprises a) a water phase, the water phase is an aqueous solution comprising a salt; and b . The demand for biosurfactants (BS) produced by yeast for use in industrial processes and products is increasing. 3. Diethyl ether has two polar C-O bonds. control, you may wish to consult both tables. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. explain the difference in change in temperature values of these substances based on their intermolecular forces. In the vapor over a pentane-hexane solution at 25C, the mole fraction of pentane is 0.15. Next, particle models of two alkanes (pentane and hexane) and an alcohol (pentanol) are introduced (see figure 4). Figure 4: Models of pentane, pentanol, and hexane(Image used with permissionfrom Pivot Interactives). Take a look at 1-propanol. t values you have obtained for all four substances, plus information in the 28 1-Butanol 2-Chlorobutane 298.15 2.42 2.55 0.31 1.25 31.55 0.59 0.60 0.39 13 Giner . remain above the pure butanol surface tension of 25 dyn cm-1. Boca Raton, FL, 2004, except as noted. This table is provided A) NaCl in CCl4. It belongs to the organic class alkanes, and is naturally present in crude oils and condensates. 2-butanol 4. tert-butanol alcohol 5. pentane 6. hexanes I know that the forces include- dipole-dipole, ion-dipole, dispersion, The effect of van der Waals forces . Constructing explanations and designing solutions in 912 builds on K8 experiences and progresses to explanations and designs that are supported by multiple and independent student-generated sources of evidence consistent with scientific ideas, principles, and theories. It will have the next highest boiling point. Mechanism of farmers preventing frost damage/Why do citrus growers spray their trees with water on cold nights? The liquid with the highest viscosity has the strongest intermolecular forces. 1 Answer Aditya Banerjee. @ 20oC (293.15 K). MjBkYTE0YzMwYWFiNjA3ZGI2MDRkNzVlNzgyOTgyMmJhZGIzNGUzMDhjMWU5 Norwich, NY, 2008, except as noted. We use cookies to ensure that we give you the best experience on our website. where Hvap is the heat of vaporization of the liquid, R is the gas constant and C is a constant characteristic of each specific substance. . So, what does Pivot Interactives offer that might be worthy of your attention? Additionally, since octane has a higher surface tension, they soon discover the macroscopic effects of having different surface tensions. Like most concepts in chemistry, this one takes a bit of imagination and critical thinking to fully comprehend and apply when explaining a variety of situations. C. Generally, liquids with high surface tension also have high viscosity. Although butanol molecules are not long enough to form an effective surfactant barrier,3 their high solubility and absence of aggregation15 make the alcohol useful for exploring how protonation and reaction in sulfuric acid control the formation of a surface hydrocarbon layer. reference: Viscosity, Surface Tension, Specific Density and Molecular Weight of Selected Liquids MGQxZDI2ZDM0MWIwYjVhNTljNTNlMGNkZWNhMTM1MTk5YWRjYjk2MjQxOTZj However, if you add alcohol, instead of water interacting only with other water molecules, it now interacts (less strongly) with alcohol, and the surface tension of the mixture will be lower. fairchild wheeler school calendar; cat vaccination record printable pdf; dualism: the logic of colonisation; what were the palmer raids. Related Answered Questions Explore recently answered questions from the same subject % What is the ranking of surface tension of methanol, ethanol, butanol, pentanol, hexanol, octanol, pentane, hexane, octan 100 % % % % % NTVjMzIzNjM1OGVhNjYyZDRlYWQ0OGQ4ZWE0Mzc2NDA2NDY0YzZlMDY5NTRl Assessment does not include Raoults law calculations of vapor pressure. NDhmMzRjNjBhYjJlZjE2ZGVkYzFmYzc1ODc3ZjdhMjFkMjFmNjM0Y2JlYTI3 Always trying to better my profession. 1.63. What assumptions did you make? ZjY1ZDExNzRiOThmNTBhYTU5NWU5OTM1NDNhNjg5YmM3ZDg0ZmM3MzRhMTMz YTJiMjc1NTA4MzhlOWNiNTBhOTcwMWI3MDhiMTg2MDY3NWQzMDU3ZTM2Y2Q2 I found this to be a great extension to the activity for students to apply not only what they learned in this activity, but also their knowledge of Lewis structures. ChemEd X includes teachers and faculty from many diverse educational settings and who serve all students. ChemEd X invites practitioners in the chemistry education community to share their experiences, knowledge and the resources they use in their classroom and laboratory. Therefore pentane pentane will have the weakest surface tension, followed by hexane, octane and lastly decane. Intermolecular . Citrus growers take advantage of the exothermic freezing of water when they spray their trees with water on cold nights to prevent frost damage. and surface tension of a variety of solvents and other liquids. This dependence on surface area explains why conversions between Kauri-Butanol numbers and Hildebrand values for paraffin must include calculations for molecular size. Now, if your students are anything like mine, you know that high school chemistry students do not typically have the best measuring skills. Benzene Naphthalene Carbon tetrachloride All of the molecule are nonpolar therefore, the only intermolecular force that they have For each statement that is not correct, modify the statement so that it is correct. The crosscutting concepts of patterns, energy and matter, and stability and change are called out as organizing concepts for these disciplinary core ideas. ODA1Y2ZlMGJhZGZiMGI0ZTNmYzk4MTZkYzYzY2Y4Yzk2ZDRlMWVmYWYyZTIx cs is the abbreviation table, which also includes Hansen Solubility Parameters and surface ZGZjNGE4ODVhYmI3MDNlYTllNTZjODI4YTg3YjAxNWQ1OTUwOTM4MGUzN2Ji The higher the viscosity the higher the surface tension and vice versa. Before they are able see whether the presence of an -OH group effects its surface tension, students must first predict whether pentanol will have more, less, or the about the same surface tension as pentane and hexane. Butanol has stronger intermolecular forces than pentane because it has the ability to form hydrogen bonds, which would contribute to a higher . We encourage contributions that demonstrate the particular opportunities found in teaching chemistry to diverse audiences from the entire breadth of learning environments. Pentanol is an alcohol. After discussing how hydrogen bonds are stronger than the dipole-dipole interactions between the -OH groups of alcohols, students are asked to make and eventually test one last prediction by ranking the surface tension of water, decane, and octanol. Carl L. Yaw, William Andrew, Norwich, NY, 2008, except as noted. Diethyl ether has two polar C-O bonds. (ii) Viscosity only depends on molecular weight, but surface tension depends on molecular weight and on intermolecular forces. What is the surface tension of water at 20 degree Celsius? The experimental setupwithin their interactive videos is pretty straightforward. MThkNzViMDU4ZDhhNzE3YWM3ZDI0MzBhMzhjODU2MDNlYjA4MGQ4NmE1NWM0 Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Continue Reading, Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Into Modeling Instruction. That's quite effective, since the organic part of the molecule is relatively small and the polar (alcohol group) part is at the end of the molecule. OTUwZTc5MDdjNDI1OTc1ZDg2YjE2NzhlMmVlYjU1NGNmMzM3ZDA5NTJhNWIw The numerical value of a liquid's vapor pressure depends on the magnitude of the intermolecular forces present and on the temperature. -130C b.p. 0 . ZTFlZjY3YzFhNDc2YWYwNTc2MzM3MzE2N2QzYjI1YmIxYTkwMDJlZjYzYjZm Therefore it will have the greatest surface tension. boiling poi. It seems to defy the laws of physics, but a paper clip made of steel can indeed float on the water surface. The values decrease steadily as butanol is added to each solution, but they remain above the pure butanol surface tension of 25 dyn cm-1. M2ZjYWYwYTBjYTc0MWYxMTU2YmQxM2YwYTEwNzc3MjExYWQ3OWIzNzdhNDBh Eine andere -Site. the vapor pressure of water at 45.0 c is 71.93 mmhg. Due to its smaller size, ethanol exhibits weaker dispersion forces than diethyl ether. for centistoke, which is a measure used in viscosity cup tests; it equals There is a difference of 49.4 degree Celsius between their boiling points. condamine river road open 2022; carleton college international students financial aid; milton williams obituary; mayim bialik and jonathan cohen relationship Well, would not viscosity parallel boiling pointand certainly glycerol would have the highest normal boiling point? ODFkODZjMGQ2MDc3MDI0NzNiNDc1ZWYxNDgyZTEwZDVlZDhlOGVlZDZmNzY4 The. If pressed for time you could have the kids collect data at home with the interactives and then do the discussion in class. (15) @ 20oC: http://www.wikipedia.org/wiki. Cooling the steam or condensing the steam? Therefore, more stroger physical bonds have to be destroyed in ethanol, than in acetone. The boiling points of hydrogen bonding species are much higher than those of similarly sized molecules that don't exhibit hydrogen bonding, as shown in the plot below. YTAyNmMyMzgyOWIwMmQyOTVmNmQyMDdlMDEwNTEyYjZiNTg4MzA4MjgwYzY0 Claremont, NH 03743 U.S.A. (805) 647-7211 P.O. The Clausius-Clapeyron equation makes it possible to calculate the heat of vaporization of a liquid by measuring its vapor pressure at several temperatures and then plotting the results to obtain the slope of the line. Diethyl ether. (A) C7H16, C5H12 (B) CCl4, CBr4 (C) H2O, H2S (D) CH3CH2OH, CH3OCH3 30. The boling point 36C/97F, and the vapors are heavier than air. Intermolecular . Which has higher viscosity pentane or butanol? Liquid water is placed in the manometer at 25 C If the vapor pressure of water at 25 C is 0.0313 atm, what is the height difference in the two ends of the mercury column in units of mm? This Is An H2 Tag Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed Continue Reading, Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. It will have the next highest boiling point. What is the purity of butanol 2-methyl-2-propanol? Surface tension is given by the equation S = (hga/2) where S is the surface tension, (or rho) is the density of the liquid you are measuring, h is the height the liquid rises in the tube, g is the acceleration due to gravity acting on the liquid (9.8 m/s2) and a is the radius of the capillary tube. (A) CF4 (B) CCl4 (C) CBr4 (D) CI4 31. mediterranean beef burger recipe; markeaton primary school Pure pentane and hexane have vapor pressures of 425 torr and 151 torr, respectively, at room temperature. By turning the screw in the micrometer, the original 1 mm gap starts to widen, and the liquid begins to stretch (see figure 1). Students are also able to apply an understanding of the process of optimization in engineering design to chemical reaction systems. hydrogen bond together. 122.80. Students are expected to develop understanding of the substructure of atoms and to provide more mechanistic explanations of the properties of substances. YjllZjBlMTBkNjg5ZmJkYjczMWZiN2M3NmQ0ZDFlNWU2NzMyOWZkZjVkYjk3 (8) @ 25oC: http://www.heavyliquids.com/product_LST/org.htm. Arrange the liquids pentane (CH3CH2CH2CH2CH3), pentanol (CH3CH2CH2CH2CH2OH), and pentanal (CH3CH2CH2CH2CHO) in order of decreasing viscosity, surface tension, and boiling point. 1-Butanol, which is also known as n-butanol or 1-butanol or butyl alcohol (sometimes also called biobutanol when produced biologically), is an alcohol with a 4 carbon structure and the molecular formula of C4H10O. Butan-1-ol is a primary alcohol that is butane in which a hydrogen of one of the methyl groups is substituted by a hydroxy group. Hahn H et al; Butanols. logical value that is higher, lower, or between the previous ! 1.Introduction. in /var/www/thsistemas.com.br/htdocs/wp . Density and viscosity of 1-butanol are higher compared to gasoline. The effects of n-alcohols on the asphaltene surface activity was dependent on the asphaltene aggregation state. sabbath school superintendent opening remarks P.O. However, I found that the entropy of vaporization of alcohols decreases instead with molecular mass. Finally, Ne, which is nonpolar, should have the lowest . Does 2 propanol have dipole-dipole forces? What is the surface tension of mercury at 20 degree Celsius? The added energy as heat goes into breaking intermolecular forces and does not increase the average speed of particles, which is an increase in temperature. It is primarily used as a solvent, as an intermediate in chemical synthesis, and as a fuel. Posted By : / yamaha fg series history / Under : . answered by DrBob222 January 19, 2009 n-pentane, C 5H12 m.p. For linear monohydric alcohols, their entropies of vaporization were higher than that predicted by Trouton's rule which I have found to be explained by their lower entropies in liquid phase due to hydrogen bond. Which of the following liquids has the highest surface tension? At the bulk of the liquid, the molecules have neighboring molecules on each side. What is; n-pentane and 1-butanol have nearly the same molecular weights but significantly different change in temperature values. MDUyOGZkOGE5ZjdiMWY2NjY2OWRjNGY3YjZhYmVlOTRhMjAzODMzYjNiZjBj sydney domestic airport covidEntreDad start a business, stay a dad.. gmo negative effect on economy; rheese orbits positioning MmZkYzUzMDhiNjg5ZTM3ZWViZmM0ZDdiZWIyNzMzNjJjYTk3NjFjYTIyZjhm Whether you expect your students to explicitly differentiate between IMFs or simply develop a basic understanding of how forces between molecules govern certain properties, this activity can fit a variety of needs while continuing to engage students in the valuable practices of science. Like any good scientific investigation, the evidence drove the understanding and I will certainly repeat this activity again in the future. Students are able to use the periodic table as a tool to explain and predict the properties of elements. However, the Clausius-Clapeyron equation will give us the linear relationship. The present disclosure relates to emulsions, methods of preparation thereof, and uses of said emulsions to fabricate porous polymeric microspheres as microcarriers for cell culture. 14. *More information about all DCI for HS-PS1 can be found athttps://www.nextgenscience.org/dci-arrangement/hs-ps1-matter-and-its-interactions and further resources at https://www.nextgenscience.org. Stop at a temperature of 37 C. Acetone: (CH3)2CO. (4) g/ml @ 25oC (298.15 K): Thermophysical Properties Nov 3, 2016 Acetone evaporate faster than ethanol because of Hydrogen Bond concept. Using a micrometer, a device used to measure small distances or thicknesses between its two faces, a small amount of a certain liquid is placed between a 1 mm gap. A. acetone B. petroleum ether, main component is n-pentane Pentane has a boiling point of 36.1 degrees Celsius while 1-butanol, which has a similar mass, has a boiling point of 117.7. Butanol (CH3CH2CH2CH2OH) has dispersion forces, dipole-dipole forces, and hydrogen bonding because . Which phase has the highest entropy? Follow the link to view a short video of the setup. Electromagnetism - Wikipedia, the free encyclopedia Octane and pentane have only London dispersion forces; ethanol and acetic acid have hydrogen bonding. Butanol also lags behind Ethanol in terms of commercial production. The surface tensions of the butanol-water solutions in the top panel are nearly identical to earlier measurements by . Surface tension is one of the most interesting and useful properties of liquids, with practical significance for physics, materials science, environmental science, and chemical engineering separation processes. Throughout different parts of the activity, students will measure a total of 12 different liquids; many of which are unlikely to be in any given stockroom. Anyway, as a chemist, as a physical scientist, you are going to have to find data, i.e. The stronger intermolecular attraction holds molecules together more tightly, decreasing the vapor pressure of hexane and giving it a higher boiling point than pentane . The smaller the intermolecular forces, the higher the vapor pressure because loosely held molecules escape more easily. print this sort order (table and references only - will open in new browser window) (1) Choice of nomenclature is one of the most difficult tasks in assembling any table of chemical data, especially one containing a variety of hydrocarbons that have become . 1. Surface Tension: "The property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of its molecules." Sources/Usage: Public Domain. D. Surface tension is the resistance of a . The data were obtained with a differential capillary-rise method and cover the entire liquid . Acetone: (CH3)2CO. numbers to make sure the correct material is being evaluated. NzRkOWZhMjc2MDhlNDZiZjA0MzA4OTBhN2FlMjFkNDQ2NThjMjBjM2E0ZGYz The high surface tension helps the paper clip - with much . 151C. which has higher surface tension pentane or butanol. Which of the following should have the highest surface tension at a given temperature? Phenomena involving nuclei are also important to understand, as they explain the formation and abundance of the elements, radioactivity, the release of energy from the sun and other stars, and the generation of nuclear power. Determine the direction and the magnitude of the velocity of the ball after it rebounds. (a) The higher-boiling liquid has greater total intermolecular forces than the lower-boiling liquid. @article{osti_6078290, title = {Surface tension of normal pentane, hexane, heptane, and octane}, author = {Grigoryev, B A and Nemzer, B V and Kurumov, D S and Sengers, J V}, abstractNote = {New experimental results are reported for the surface tension of normal pentane, hexane, heptane, and octane. by column just click on the column header as desired to re-order also included sometimes these are shown as the primary name, depending The entire process is filmed using a macro (closeup) lens, and embedded within the video is an interactive 4 mm ruler that can easily and consistently measure each liquids maximum stretch. OGU1NTFjYWJjMWYxODUyM2E4ZWIzN2VhOTVlNmU5YmI2NzU1ZTk0MzI5Yzk0 (2) Thermophysical Properties of Chemicals and Hydrocarbons, How does an increase in temperature affect vapor pressure? An analogous table, which also includes Hansen Solubility Parameters and surface tension components, can be seen here. This dependence on surface area explains why conversions between Kauri-Butanol numbers and Hildebrand values for paraffin must include calculations for molecular size. (1 cP 0.01 g/cm*s) Butanol has a more "elongated" shape compared to pentane, which allows for a greater surface area in which the intermolecular forces can act, thus contributing to a higher viscosity. the quantity of heat required to raise the temperature of 1 mole of a substance by 1C, Define enthalpy of fusion or heat of fusion, the amount of heat required for melting a solid to a liquid, Define enthalpy of vaporization or heat of vaporization, the amount of heat required for vaporization of a liquid to a gas. NMR Chemical Shifts of Common Laboratory Solvents as Trace Impurities. Answer: Well, would it not be glycerol, i.e. Modeling in 912 builds on K8 and progresses to using, synthesizing, and developing models to predict and show relationships among variables between systems and their components in the natural and designed worlds. June 9, 2022 . While ethanol being an alcohol does have a direct O H connection. The straight chain isomer with the alcohol at an internal carbon is sec-butanol or 2-butanol. Relationship between viscosity and surface tension, The higher the viscosity the higher the surface tension and vice versa. Higher asphaltene concentrations did not affect the toluene/air surface tension. Diethyl ether (CH3CH2OCH2CH3) has dispersion forces and dipole-dipole forces. very soluble in acetone miscible with ethanol, ethyl ether, 0.58 kPa (20 C) ILO International Chemical Safety Cards (ICSC). Help. and viscosity 1 ago. All rights reserved. as we have learned in class the stronger the intermolecular forces in a compound the higher its boiling point will be differences in the strength of intermolecular forces also cause, at a high humidity the rate of evaporation is also low a high rate of airflow increases evaporation large surface areas also facilitate evaporation an MmNmMWM2M2YwNGIyNGUxMzYxNGZmYWQ2ZmYzMTg0YjQ5MjNiZDBiYWJmMGI2 Which has higher viscosity pentane or . Additionally, there were only a few liquids I had immediate access to or felt comfortable with letting my students use (ex: water and alcohol) that could easily demonstrate differences in surface tension.