For the following questions refer to the temperature and dew point data in the following cities:
-Which of the following statements about water vapour is correct?
A)Vapour pressure decreases with increasing altitude.
B)A decrease in the number of water vapour molecules will increase the vapour pressure.
C)If air pressure falls, vapour pressure will increase.
D)The vapour pressure is typically higher than the partial pressure exerted by oxygen.

Question

For the following questions refer to the temperature and dew point data in the following cities: 
-Which of the following statements about water vapour is correct?
A)Vapour pressure decreases with increasing altitude. 
B)A decrease in the number of water vapour molecules will increase the vapour pressure. 
C)If air pressure falls, vapour pressure will increase. 
D)The vapour pressure is typically higher than the partial pressure exerted by oxygen.

Quizplus · Accepted Answer

Vapour pressure decreases with increasing altitude as there is less atmospheric pressure to hold the water vapour molecules in the air.

For the Following Questions Refer to the Temperature and Dew