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.

The weather report reads, "Temperature 20^(@)C: Relative humidity 100%".What is the dew point?

The weather report reads, "Temperature 20^(@)C: Relative humidity 100%".What is the dew point?

The weather report reads, "Temperature 20^(@)C: Relative humidity 100%".What is the dew point?

The pressure exerted by a 760 mm column of mercury at 0^(@)C is known as

The vapour pressure of water is 17.5 torr at 20^@C . When the relative humidity is 45%, the number of moles, of water present at 20^@C in 1 L of air is

Calculate the velocity of sound in moist air at 27^(@)C and 0.7 m pressure. The dew point is 15^(@)C . The saturated vapour pressure at 15^(@)C is 17 mm of mercury and velocity of sound at 0^(@)C in dry air is 330 m s^(-1) .

A glass contains some water at room temperature 20^(@)C .Refrigerated water is added to it slowly. When the temperature of the glass reaches 10^(@)C, small droplets condense on the outer surface. Calculate the relative humidity in the room. The boiling point of water at a pressure of 17.5mm of mercury is 20^(@)C and at 8.9mm of mercury is 10^(@)C .