February 28, 2017

Homework Help: (1-11) Chemistry - Science (Dr. Bob222)

Posted by Ana on Saturday, May 10, 2014 at 8:12am.

Liquid chloroform (CHCl3) is placed in a closed container and allowed to equilibrate with chloroform vapor. With the temperature held constant, additional chloroform is introduced into the system, and the vapor-liquid equilibrium is reestablished. Following this, the chloroform vapor pressure will:

a) be higher
b) be lower
c) be the same if both liquid and vapor phases are present
d) be lower if the heat of vaporization is positive
e) be higher if the heat of vaporization is positive

The correct answer is C but I don't quite get it why so? Could you please explain? Thank you

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