If a relative humidity of 300 percent is necessary to ensure the long-term survival of a water droplet,then such a droplet would have a supersaturation of:
A)100 percent.
B)200 percent.
C)300 percent.
D)400 percent.

Question

Quizplus · Accepted Answer

Supersaturation refers to the amount of water vapor present in air compared to the maximum amount of water vapor that the air can hold at a particular temperature and pressure. A relative humidity of 100 percent means that the air is holding the maximum amount of water vapor it can at that particular temperature and pressure. Therefore, for a water droplet to have a relative humidity of 300 percent, it would mean that the air is holding three times the amount of water vapor it can hold at that temperature and pressure. This would result in the water droplet becoming unstable and condensing out of the air. Therefore, a water droplet with a relative humidity of 300 percent cannot exist. The only possible option is B) 200 percent, which would mean that the air is holding twice the amount of water vapor it can hold at that temperature and pressure, resulting in a supersaturated water droplet that can exist in the air for a longer time.

If a Relative Humidity of 300 Percent Is Necessary to Ensure