The property which primarily controls how much water can be present as a gas is:
A)number of particulates present.
B)availability of latent heat.
C)temperature of the air.
D)water's specific heat.
E)amount of dry air gases present.

Question

Quizplus · Accepted Answer

The capacity of air to hold water vapor increases with an increase in temperature. Warmer air has a higher vapor pressure and is capable of holding more water vapor compared to cooler air. This is the reason why we use humidifiers in winter when the air is cold, as the colder air is not capable of holding much water vapor, leading to dry air. Similarly, during the summer, the air can hold more water vapor, leading to high humidity levels. Therefore, temperature is the primary factor that controls how much water can be present as gas in the air, making option C the correct answer.

The Property Which Primarily Controls How Much Water Can Be