Fill in the blank: To test the hypothesis, which is that solute molecules do not

Question

Fill in the blank:

To test the hypothesis, which is that solute molecules do not cause a decrease in vapor pressure by blocking the solvent molecules from escaping, you would need to measure vapor pressure while you simulate this blockage. Blocking solvent molecules from escaping can be accomplished in a variety of ways, but the same principle would be applied in each case. Complete the following statement about what property is being affected. Spell out the full name of the property. The act of blocking solvent molecules can be simulated by effectively decreasing the solvent's __________________.

(Incorrect answers are "temperature", "vapor pressure", and "boiling point elevation".)

Explanation / Answer

Blocking solvent molecules from escaping can be accomplished in a variety of ways, but the same principle would be applied in each case.

The act of blocking solvent molecules can be simulated by effectively decreasing the solvent's molecular kinetic energy which ceases the the escaping tendency i.e. tendency of evaporation.

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