SSC JE Mechanical Engineering 2017 Set 4 Paper

Question : 175 of 200

Marks: +1, -0

The weight of the water vapour in kg contained in 1

m^3

of air-vapour mixture at its total pressure is known as ____.

degree of saturation
percent humidity
humidity ratio
vapour density

Validate

Solution:

Vapour density is the ratio of the mass of a volume of a gas to the mass of an equal volume of hydrogen, measured under the same conditions of temperature & pressure.

Vapour Density

=\text"Mass of ' n ' molecules of gas "/\text"mass of ' n ' molecules of Hydrogen"

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