Condensation occurs when the temperature drops to or below the dew point.?

Question

True or False

***And why please***

Answer 1

Yes, that is true except for one small discrepancy, the air temperature can never go below the dew point. When the air temperature becomes equivalent to the dew point temperature, the air becomes saturated, and 100% humidity is achieved. Since the water vapor has no where to go, it condenses.

Answer 2

Often at night, air that is at much less than 100% relative humidity cools until it reaches 100% relative humidity and dew forms on leaves, etc. due to condensation.  That is the dew point.  As the temperature continues to drop more condensation occurs and the air remains at 100% relative humidity (holding all the moisture that it can at that temperature) and the dew point (ambient temperature) continues to fall.  If the air is exceptionally dry, ice (frost) may form at or below 32F as the 'dew point' is reached.