What is relative humidity?

On a winter day, the outside temperature is 0^(@)C and relative humidity 40%.The air from outside comes into a room and is heated to 20^(@)C. What is the relative humidity in the room? The saturated vapour pressure at 0^(@)C is 4.6mm of mercury and at 20^(@)C it is 18mm of mercury.

What is absolute humidity?

What is relative velocity?

What is relativity ?

What is the formula for percentage of relative humidity ?

Dry air : less than 60% Relative humidity :: Humind air. …..

The temperature and the relative humidity of air are 20^(@)c and 80% on a certain day. Find the fraction of the mass of water vapour that will condense if the temperature falls to 5^(@)C .The saturation vapour pressure are 17.5mm and 6.5mm of mercury at 20^(@)c and 5 degree C respectively.

A bucket full of water is placed in a room at 15^(@)C with initial relative humidity 40%. The volume of the room is 50m^(3) .(a) How much water will evaporated? The saturation vapour pressure of water at 15^(@)C and 20^(@)C are 1.6kPa and 2.4 kPa respectively.