When the air temperature is below freezing,the saturation vapor pressure over water is
A) equal to zero.
B) less than the saturation vapor pressure over ice.
C) greater than the saturation vapor pressure over ice.
D) equal to the saturation vapor pressure over ice.

Question

Quizplus · Accepted Answer

When the air temperature is below freezing, the saturation vapor pressure over water is greater than the saturation vapor pressure over ice. This is because the saturation vapor pressure is temperature-dependent, and as temperatures decrease, so does the saturation vapor pressure. However, since the saturation vapor pressure over water is initially higher than the saturation vapor pressure over ice at 0°C, it remains higher than that over ice at temperatures below 0°C.

When the Air Temperature Is Below Freezing,the Saturation Vapor Pressure