At 4ºC, the atmosphere is saturated with water vapour. If the air temperature increases to 15ºC, with no addition or removal of water vapour, what is the dew point?
A)about 2ºC
B)about 15ºC
C)about 8ºC
D)about 4ºC

Question

Quizplus · Accepted Answer

The dew point is the temperature at which air becomes saturated with moisture and dew can form. If the air was saturated at 4ºC and then warmed without adding or removing moisture, the dew point remains at the original saturation temperature, which is 4ºC.

At 4ºC, the Atmosphere Is Saturated with Water Vapour