Question

A student leaving campus for spring break wants to make sure the air in his dorm room has a high water vapor pressure so that his plants are comfortable. The dorm room measures 3.37 m × 4.94 m × 3.93 m and the student places a pan containing 1.80 L of water in the room. Assume that the room is airtight, that there is no water vapor in the air when he closes the door, and that the temperature remains a constant 21 °C. The vapor pressure of water at 21 °C is 18.7 mm Hg.

(a) Calculate the pressure that the water vapor would exert if all of the liquid water evaporated.

(b) Will all of the water in the pan evaporate?

Answer 1