A sample of water in the vapor phase (no liquid present) in a flask of constant volume exerts a pressure of 367 mm Hg at 94 °C. The flask is slowly cooled.
i) Assuming no condensation, use the Ideal Gas Law to calculate the pressure of the vapor at 81 °C; at 73 °C.
ii) Will condensation occur at 81 °C; at 73 °C? Explain.
iii) On the basis of your answers in i) and ii), predict the pressure exerted by the water vapor at 81 °C; at 73 °C.

Show Me!

Help Me!

Watch Me!

Select Show Me! if you would like an expert to show how to answer this type of problem. Select Help Me! if you have a basic idea how to do this problem, but you would prefer to interact with an expert. Select Watch Me! if you are confident you know how to do this problem and you have your answer.