GENERAL KNOWLEDGE

Detailed explanation-1: -The ratio of the mass of water vapour actually present in certain volume of air (m) to the mass of water vapour (M) required to saturate the same volume of air at the same temperature is called relative humidity (R.H)

Detailed explanation-2: -The relative humidity is the percent of water vapor in the air at a given temperature as compared with the amount it could hold if it were saturated. For example, air with a 50% relative humidity in just “half full” of water vapor. The psychrometer consists of a dry and wet bulb thermometer placed side-by-side.

Detailed explanation-3: -Relative humidity, RH, is the ratio of the amount of water vapor present in the air to the maximum amount of water vapor needed for saturation at a certain pressure and temperature. It is typically multiplied by 100 and expressed as a percent.

Detailed explanation-4: -Stated simply, relative humidity is the ratio of the amount of water vapor in the air to the amount required for saturation at a given temperature and pressure. A relative humidity of 100% means that an air parcel is completely saturated.

Detailed explanation-5: -Relative humidity can be defined as the amount of water vapor in air at a given temperature compared to what that air could hold at that temperature.