Question

The SAR is dependent on the moisture content of the air, why?

Answer 1

The specific heat capacity of water vapor is dependent on its phase and can vary depending on the amount of water vapor present in the air.

Step-by-step explanation:

The specific heat capacity of a substance is the amount of heat required to raise the temperature of 1 gram of the substance by 1 degree Celsius. It is typically measured in joules per gram per degree Celsius (J/g°C). The specific heat capacity of water is 4.18 J/g°C.

However, the specific heat capacity of water vapor is lower than that of liquid water. This means that, for the same temperature change, a smaller amount of heat is required to raise the temperature of water vapor compared to liquid water.

Therefore, the specific heat capacity of water vapor is dependent on its phase (liquid or gas) and can vary depending on the amount of water vapor present in the air.