Under what circumstances could the relative humidity exceed 100% without producing condensation in the air?
A) when the water vapor is composed of "heavy" water
B) when there are no condensation nuclei
C) when the air is perfectly dry
D) when the dew point is higher than the air temperature

Question

Quizplus · Accepted Answer

Condensation requires the presence of condensation nuclei such as dust, salt, or aerosols. In the absence of these nuclei, the relative humidity can exceed 100% without producing condensation in the air. This is known as supersaturation.

Under What Circumstances Could the Relative Humidity Exceed 100% Without