Box of Water Vapor

A sealed box of water vapor has the following properties:

1) n = 30 mol

2) V = 1 m^3

3) T = 374 K

The pressure can then be calculated using the ideal gas law:

A) True

B) False

Solution: B. The ideal gas law only applies when the temperature is well above the condensation point. This is only 1 K above the condensation point of water.