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You are comparing two unknown liquids of similar molecularmass.
Liquid A has a vapor pressure that is much higher than that ofliquid B at the same temperature. Which of the following is themost
likely explanation for this observation.

A. Liquid B is nonpolar and liquid A is polar, and the strongerintermolecular forces in liquid A give the liquid a
higher vapor pressure.

B. Liquid B is polar and liquid A in nonpolar, and the strongerintermolecular forces in liquid B give the liquid a lower
vapor pressure.

C. Both liquids are nonpolar.

D. Both liquids are equally polar.

What effect does polarity have on boiling and melting points ofcompounds?

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Casey DurganLv2
28 Sep 2019
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Related questions

Suppose you have two colorless molecular liquids, one boiling at –84 °C, the other at 34 °C, and both at atmospheric pressure. Which of the following statements is correct? For each statement that is not correct, modify the statement so that it is correct. (a) The higher-boiling liquid has greater total intermolecular forces than the lower-boiling liquid. (b) The lower-boiling liquid must consist of nonpolar molecules. (c) The lower-boiling liquid has a lower molecular weight than the higher-boiling liquid. (d) The two liquids have identical vapor pressures at their normal boiling points. (e) At –84 °C both liquids have vapor pressures of 760 mm Hg.

Which of the following statements are true about an ideal solution of two volatile liquids?

A. The partial pressure of each component above the liquid is given by Raoult's law.

B.The liquid and gaseous phases can only coexist for a single value of the pressure at a given temperature.

C. An ideal solution of two volatile liquids can exist over a range of pressures that are limited by the pressure for which only a trace of liquid remains, and the pressure for which only a trace of gas remains.

D. The vapor phase is always depleted in the more volatile or higher vapor pressure component in comparison with the liquid phase.

Answer choices:

A and B

A and C

C and D

B and D

Liquid X is known to have a higher surface tension and higher vapor pressure than Liquid Y. Use these facts to predict the result of each experiment in the table below, if you can.

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