Question

What occurs when the air temperature is equal to the dew point temperature.
The relative himidity is 100% so condensation occurs
The relative humidity is 0 so evaporation occurs
The relative humidity is 100 so evaporation occurs
The relative humidity is 0 so condensation occurs

Answer 1

When the air temperature is equal to the dew point temperature, the relative humidity is 100%. This means that the air is fully saturated with moisture, and any further cooling or addition of moisture will lead to condensation.

Therefore, the correct statement is:

**The relative humidity is 100% so condensation occurs.**