Question

Humidity is given by the ratio of to .

• A. water vapour mass
• B. air mass
• C. air volume
• D. water vapour volume

Answer 1

Answer: (A), (B)

The correct options are
A water vapour mass
B air mass

From definition of humidity,
$\text{Humidity}=\frac{\text{Density of water vapor}}{\text{Density of air}}$

For a given volume of air,
$\text{Humidity}=\frac{\text{Mass of water vapor}}{\text{Mass of air}}$