Chemistry Chemistry Practice Problems Solutions Library

Intermolecular Forces and Physical Properties Solutions Library

Access 244 Intermolecular Forces and Physical Properties video and text solutions to help you complete your homework.

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244 solutions

Intermolecular Forces and Physical Properties

Q. Identify the true statements about surface tension. Molecules along the surface of a liquid behave differently than those in the bulk liquid. Mercu...

Solved • Mar 30, 2020

Intermolecular Forces and Physical Properties

Q. Match the following statement to the appropriate term.This is a temperature at which the liquid vapor pressure is equal to the external pressure on...

Solved • Mar 20, 2020

Intermolecular Forces and Physical Properties

Q. Which of the following statements is correct?a) The stronger the intermolecular forces, the lower the vapor pressure, and the lower the boiling poi...

Solved • Mar 12, 2020

Intermolecular Forces and Physical Properties

Q. Which of the following substances should have the highest vapor pressure?A) CH4B) Cl2C) KrD) CH2Cl2E) N2

Solved • Feb 4, 2020

Intermolecular Forces and Physical Properties

Q. Which one of the following substances has the highest boiling point?A) PH3B) HeC) H2SD) CH4E) CCl4

Solved • Feb 4, 2020

Intermolecular Forces and Physical Properties

Q. A small diameter glass tube is placed into the following liquids. Which liquid demonstrates the greatest capillary rise?A. CO2(l) B. H3CCH2CH3(l) C...

Solved • Jan 22, 2020

Intermolecular Forces and Physical Properties

Q. Which compound will have the greatest viscosity?A. C9H20 B. H3COH C. HCOOH D. CO(l) E. ether, H3C-O-CH3

Solved • Jan 22, 2020

Intermolecular Forces and Physical Properties

Q. Which compound has the highest boiling point?A. CH4 B. NH3 C. CO2 D. H2O E. KF

Solved • Jan 22, 2020

Intermolecular Forces and Physical Properties

Q. Octane, C8H18 (bp: 125°C), boils nearly 35° higher than cyclooctane, C8H16 (bP : 90 °C): What are the primary factors responsible for the higher bo...

Solved • Jan 20, 2020

Intermolecular Forces and Physical Properties

Q. Based on molecular mass and dipole moment of the five compounds in the table below, which should have the lowest boiling point? a) CH3CH2CH3b) CH3O...

Solved • Jan 20, 2020

Intermolecular Forces and Physical Properties

Q. The substances below have molar masses that are the same within 2 g/mol. Which substance has the lowest boiling point?A. Need to know concentration...

Solved • Dec 20, 2019

Intermolecular Forces and Physical Properties

Q. Dichloromethane has a greater solubility in water than in carbon tetrachloride and the two have significantly different vapor pressures at 20°C. Se...

Solved • Nov 4, 2019

Intermolecular Forces and Physical Properties

Q. Compounds 1 and 2 have the same chemical formula, but different physical properties.The structure of one of the compounds is shown in Box A. In box...

Solved • Nov 1, 2019

Intermolecular Forces and Physical Properties

Q. Which of the following substances most likely has the largest enthalpy of vaporization? (a) CH4(b) CH3CH3(c) CH3CH2—OH(d) HO-CH2CH2—OH(e) H2O

Solved • Nov 1, 2019

Intermolecular Forces and Physical Properties

Q. Which of the following compounds most likely has the highest boiling point?(a) NH3(b) H2O(c) HBr(d) Xe(e) H2S

Solved • Nov 1, 2019

Intermolecular Forces and Physical Properties

Q. Rank the following compounds in order of increasing vapor pressure.(a) A < B < C < D(b) D < C < B < A(c) A < D < C < B(d...

Solved • Nov 1, 2019

Intermolecular Forces and Physical Properties

Q. Vapor pressure of a liquid is related to which of the following factors?I. Liquid amount II. Atmospheric pressure III. Temperature IV. Liquid typeA...

Solved • Oct 9, 2019

Intermolecular Forces and Physical Properties

Q. Arrange the following in order of increasing boiling point:    CsF, CH3Br, CH3OH, CH4A. CH4 < CH3Br < CH3OH < CsFB. CH3OH < CH4 < CH...

Solved • Sep 18, 2019

Intermolecular Forces and Physical Properties

Q. Which statement best compares the melting point of butane (C4H10) with that of octane (C8H18)?a) The melting points of both substances are identica...

Solved • Aug 31, 2019

Intermolecular Forces and Physical Properties

Q. Which of the following liquids would exhibit the highest vapor pressure at 25.0°C?a) Ethyl alcohol, boiling point = 78.3°Cb) Glycerine, boiling poi...

Solved • Aug 31, 2019

Intermolecular Forces and Physical Properties

Q. At the same pressure, which of the following substances will have the highest boiling point (O2. CH4, NH3, CO2)A) O2B) CH4C) NH3D) CO2

Solved • Aug 5, 2019

Intermolecular Forces and Physical Properties

Q. Sublimations are generally performed under reduced pressure because:a. the attractive intermolecular interactions between the molecules in the soli...

Solved • Aug 2, 2019

Intermolecular Forces and Physical Properties

Q. Match the following statement to the appropriate term. (Evaporation, Vapor Pressure, Boiling Point, Deposition, Decomposition) 

Solved • Aug 2, 2019

Intermolecular Forces and Physical Properties

Q. Liquids can interact with flat surfaces just as they can with capillary tubes; the cohesive forces within the liquid can be stronger or weaker than...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. The following molecules have the same molecular formula (C3H8O), but different chemical structures.propanolethyl methyl etherOne of these molecules...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. You are high up in the mountains and boil water to make some tea. However, when you drink your tea, it is not as hot as it should be. You try again...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. The table below shows the normal boiling points of benzene and benzene derivatives.Why is the boiling point of bromobenzene higher than that of chl...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. The relative humidity of air equals the ratio of the partial pressure of water in the air to the equilibrium vapor pressure of water at the same te...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. In the table we see that the viscosity of a series of hydrocarbons increases with molecular weight, doubling from the six-carbon molecule to the te...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Ethylene glycol (HOCH2CH2OH) and pentane (C5H12) are both liquids at room temperature and room pressure, and have about the same molecular weight.O...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Ethylene glycol (HOCH2CH2OH) and pentane (C5H12) are both liquids at room temperature and room pressure, and have about the same molecular weight.O...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Ethylene glycol (HOCH2CH2OH) and pentane (C5H12) are both liquids at room temperature and room pressure, and have about the same molecular weight.O...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Meniscus shapes for water and mercury in glass tubes.If the inside surface of each tube were coated with wax, would the general shape of the water ...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. The table below shows some physical properties of halogenated liquids.LiquidExperimental Dipole Moment (D)Normal Boiling Point (˚C)CH2F21.93–52CH2C...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. You may want to reference (Pages 439 - 445) Section 11.2 while completing this problem.Carbon tetrachloride, CCl4, and chloroform, CHCl3, are commo...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. You may want to reference (Pages 438 - 445)Section 11.2 while completing this problem.Which of the following substances is most likely to be a liqu...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Why are the critical temperature and pressure for H2O so much higher than those for H2S, a related substance?

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Based on their composition and structure, list CH2Cl2, CH3CH2CH3, and CH3CH2OH in order of decreasing surface tension.

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. The boiling points, surface tensions, and viscosities of water and several alcohols are as follows:Boiling Point (oC)Surface Tension (J/m2)Viscosit...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. The boiling points, surface tensions, and viscosities of water and several alcohols are as follows:Boiling Point (oC)Surface Tension (J/m2)Viscosit...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. In terms of the arrangement and freedom of motion of the molecules, how are the nematic liquid crystalline phase and an ordinary liquid phase similar?

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. One of the attractive features of ionic liquids is their low vapor pressure, which in turn tends to make them nonflammable.Why do you think ionic l...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. The vapor pressure of ethanol (C2H5OH) at 19˚C is 40.0 torr. A 0.900-g sample of ethanol is placed in a 2.80 L container at 19˚C. If the container ...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. At room temperature, Si is a solid, CCl4 is a liquid, and Ar is a gas.List these substances in order of decreasing boiling point.

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Why do substances with high surface tension also tend to have high viscosities?

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. As a metal such as lead is heated past its melting point, what happens to the average kinetic energy of the atoms?

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Look up and compare the normal boiling points and normal melting points of H2O and H2S.Based on these physical properties, which substance has stro...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Compare the viscosity of n-pentane, CH3CH2CH2CH2CH3, to the viscosity of n-hexane, CH3CH2CH2CH2CH2CH3.

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Compare the viscosity of neopentane, (CH3)4C, and n-pentane.

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Place the following substances in order of decreasing volatility: CH4, CBr4, CH2Cl2, CH3Cl, CHBr3, and CH2Br2.

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Use the normal boiling points: propane, C3H8, –42.1˚C; butane, C4H10, –0.5˚C; pentane, C5H12, 36.1˚C; hexane, C6H14, 68.7˚C; heptane, C7H16, 98.4˚C...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. The table shown here lists the molar heats of vaporization for several organic compounds.Compound Heat of vaporization (kJ/mol)CH3CH2CH319.0CH3CH2C...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. The table shown here lists the molar heats of vaporization for several organic compounds.Compound Heat of vaporization (kJ/mol)CH3CH2CH319.0CH3CH2C...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Liquid butane, C4H10, is stored in cylinders, to be used as a fuel. The normal boiling point of butane is listed as -0.5oC.Suppose the tank is stan...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Liquid butane, C4H10, is stored in cylinders, to be used as a fuel. The normal boiling point of butane is listed as -0.5oC.Suppose the valve to the...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Suppose you have two colorless molecular liquids, one boiling at - 84 oC, the other at 34 oC, and both at atmospheric pressure. Which of the follow...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Two isomers of the planar compound 1,2-dichloroethylene are shown here, along with their melting and boiling points. One isomer has a boiling poi...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. The following table gives the vapor pressure of hexafluorobenzene (C6 F6 ) as a function of temperature: Temperature (K ...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. As the intermolecular attractive forces between molecules increase in magnitude, do you expect each of the following to increase or decrease in mag...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. As the intermolecular attractive forces between molecules increase in magnitude, do you expect each of the following to increase or decrease in mag...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Melting and boiling points for benzene, toluene, and phenol.In which substance, benzene or toluene, are the intermolecular forces stronger?

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Liquid crystalline phases tend to be more viscous than the isotropic, or normal, liquid phase of the same substance.Why?

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Which compound do you think is more volatile at 25˚C: CCl4 or CBr4?

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Two pans of water are on different burners of a stove. One pan of water is boiling vigorously, while the other is boiling gently. What can be said ...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Use the vapor-pressure curve in the figure to estimate the boiling point of ethanol at an external pressure of 200 torr.

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Estimate the external pressure at which ethanol will boil at 60 oC.

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Estimate the boiling point of diethyl ether at 400 torr.

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Estimate the external pressure at which diethyl ether will boil at 40 oC.

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Acetone, H3CCOCH3, has a normal boiling point of 56 ºC. Based on the data given in the figure, would you expect acetone to have a higher or lower v...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Using the graph,determine the following.The approximate vapor pressure of CS2 at 30 oC.

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Predict the critical temperature for CCl4 based on the trends in the table in the prompt.  

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. The molecular models of glycerol and 1-propanol are given here.Do you expect the viscosity of glycerol to be larger or smaller than that of 1-propa...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Hydrazine (NH2NH2 ), hydrogen peroxide (HOOH), and water (H2O) all have exceptionally high surface tensions in comparison with other substances of ...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Ethylene glycol (HOCH2CH2OH), the major substance in antifreeze, has a normal boiling point of 198 oC. By comparison, ethyl alcohol (CH3CH2OH) boil...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Ethylene glycol (HOCH2CH2OH), the major substance in antifreeze, has a normal boiling point of 198 oC. By comparison, ethyl alcohol (CH3CH2OH) boil...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Propyl alcohol (CH3CH2CH2OH) and isopropyl alcohol [(CH3)2CHOH], whose space-filling models are shown, have boiling points of 97.2 oC and 82.5 oC, ...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Butane and 2-methylpropane, whose space-filling models are shown, are both nonpolar and have the same molecular formula, yet butane has the higher ...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Which solid would you expect to have the highest melting point?(a) MgO(s)(b) I2(s)(c) Kr(s)

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Which solid has the highest melting point?a) CS2(s)b) CaF2(s)c) C8H18(s)d) Ar(s)

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. The boiling points of three compounds are tabulated here.Molar Mass (g/mol)Boiling Point (˚C)2-hexanone100.16128heptane100.20981-hexanol102.17156An...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Pick the compound with the highest boiling point in each pair.a. NH3 or CH4b. CS2 or CO2c. CO2 or NO2

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. The structures of two isomers of heptane are shown below.Which of these two compounds would you expect to have the greater viscosity?

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. In the following pairs of solids, which one has the higher melting point?a. Fe(s) or CCl4(s)b. KCl(s) or HCl(s)c. Ti(s) or Ne(s)d. H2O(s) or H2S(s)

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Explain why each molecule has a higher melting point than the other in the pair.a. Fe(s) or CCl4(s)b. KCl(s) or HCl(s)c. Ti(s) or Ne(s)d. H2O(s) or...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Which of the following solids has the highest melting point: Ar(s), CCl4(s), LiCl(s), CH3OH(s)?

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Of the following pair of solids, which one has the higher melting point: CCl4(s) or SiCl4(s)?

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Of the following pair of solids, which one has the higher melting point: Kr(s) or Xe(s)?

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Based on the expected intermolecular forces, which halogen has the highest boiling point?

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Explain the following trend in the boiling points of the compounds listed.H2Te-2 oCH2Se-41.5 oCH2S-60.7 oCH2O+100 oC

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Why is the heat of vaporization of water greater at room temperature than it is at its boiling point?

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. For the following pair of compounds, pick the one with the higher vapor pressure at a given temperature: NH3 or PH3.

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Explain why each molecule has a higher vapor pressure at a given temperature than the other in the pair.a. CH4 or CH3Clb. CH3CH2CH2OH or CH3OHc. CH...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Water (a) "wets" some surfaces and beads up on others. Mercury (b), in contrast, beads up on almost all surfaces.Explain this difference.

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Explain why the viscosity of multigrade motor oils is less temperature dependent than that of single-grade motor oils.

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Water in a glass tube that contains grease or oil residue displays a flat meniscus, whereas water in a clean glass tube displays a concave meniscus...

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. When a thin glass tube is put into water, the water rises 1.4 cm. When the same tube is put into hexane, the hexane rises only 0.4 cm. Explain.

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Which will evaporate more quickly: 55 mL of water in a beaker with a diameter of 4.5  cm, or 55 mL of water in a dish with a diameter of 12  cm?

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Which will evaporate more quickly: 55 mL of water (H2O) in a beaker or 55 mL of acetone [(CH3)2CO] in an identical beaker under identical conditions?

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. Arrange the following in order of increasing boiling point: CH4, CH3CH3, CH3CH2Cl, CH3CH2OH.

Solved • Nov 27, 2018

Intermolecular Forces and Physical Properties

Q. For the following pair of compounds, pick the one with the higher boiling point: CH3OH or CH3SH.

Solved • Nov 27, 2018