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Laboratory Section:

A sample of water in the vapor phase (no liquid present) in a flask of constant volume exerts a pressure of mm Hg at degrees Celsius. The flask is slowly cooled.

i) Assuming no condensation, use the Ideal Gas Law to calculate the pressure of the vapor

at degrees Celsius

Your answer is mmHg

at degrees Celsius

Your answer is mmHg

ii) Will condensation occur at

degrees Celsius? (Yes/No)

Explain:

degrees Celsius? (Yes/No)

Explain:

iii) On the basis of your answers in i) and ii), predict the pressure exerted by the water
vapor at

degrees Celsius?

Your answer is mmHg

degrees Celsius?

Your answer is mmHg