For the following questions refer to the temperature and dew point data in the following cities:
-Which of the following will happen to the relative humidity as the air temperature increases, and with no addition of water vapour to the air?
A)It will increase.
B)It will decrease.
C)It will remain the same.
D)It will increase until it equals the dew point temperature.

Question

For the following questions refer to the temperature and dew point data in the following cities: 
-Which of the following will happen to the relative humidity as the air temperature increases, and with no addition of water vapour to the air?
A)It will increase. 
B)It will decrease. 
C)It will remain the same. 
D)It will increase until it equals the dew point temperature.

Quizplus · Accepted Answer

As the air temperature increases with no addition of water vapour, the saturation vapour pressure increases. Since the actual vapour pressure in the air remains the same, the relative humidity decreases, as relative humidity is the ratio of actual vapour pressure to saturation vapour pressure at a given temperature.

For the Following Questions Refer to the Temperature and Dew