At what point on this water vapor saturation curve graph will water vapor be deposited on ice crystals while liquid water droplets will evaporate?
A)A
B)B
C)C

Question

At what point on this water vapor saturation curve graph will water vapor be deposited on ice crystals while liquid water droplets will evaporate? 
A)A 
B)B 
C)C

Quizplus · Accepted Answer

At point B, the air is supersaturated with respect to ice, meaning there is more water vapor in the air than the maximum amount it can hold at that temperature and pressure. Therefore, any excess water vapor will deposit onto the available ice crystals. On the other hand, the air is not saturated with respect to liquid water at point B, meaning there is not enough water vapor in the air to maintain liquid water droplets. As a result, they will evaporate rather than condense onto the available water droplet nuclei.

At What Point on This Water Vapor Saturation Curve Graph