Chapter 31, Problem 3RQ

As air temperature decreases, does relative humidity increases, decreases, or stay the same?

To determine

Whether the relative humidity increases, decreases, or stay the same, when air temperature decreases.

Answer to Problem 3RQ

The relative humidity increases when the air temperature decreases.

Explanation of Solution

Air means the moist air, which consists of water vapor and other gases. Air, which is at a higher temperature, can hold more water molecules than air at the lower temperature.

Relative humidity inversely depends on the number of water molecules air can hold at a particular temperature as the lower temperature can hold less water molecule so, relative humidity increases.

Conclusion:

Therefore, the relative humidity increases when the air temperature decreases.