If the relative humidity is more than 60%, then then the air is ……….. .
What is relative humidity?
Relative humidity is measured by
Pure water vapour is trapped in a vessel of volume 10cm^(3) . The relative humidity is 40%. The vapour is compressed slowly and isothermally.find the volume of the vapour at which it will start condendsing.
The temperature and the relative humidity are 300 K and 20% in a room of volume 50 m^(3) . The floor is washed with water, 500 g of water sticking on the floor. Assuming no communication with the surrounding, find the relative humidity when the floor dries. The changes in temperature and pressure may be neglected. Saturation vapour pressure at 300 K = 3.3 kPa .
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.
Insstrument to measure 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.
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.
What is absolute humidity?
CHETAN PUBLICATION-HEAT-ASSIGNMENT - 5 (Answer the following: (Any 1))
