Ncert Exercises & Solutions

Pressure exerted by saturated water vapour is called aqueous tension. What correction term will you apply to the total pressure to obtain pressure of dry gas?

Whenever a gas is collected over water, it is moist and saturated with water vapours which exert their own pressure. The pressure due to water vapours is called aqueous tension thus, the total pressure of the gas (p moist gas) is

p_{moist gas} = p_{dry gas} + aqueous tension

Thus,

p_{dry gas}

is given as

p_{dry gas} = p_{moist gas} - aqueous tension

Hence, the correction term applied to the total pressure of the gas in order to obtain pressure of dry gas is

p_{moist gas} - aqueous tension

NEET Information

courses

Company

Botany Questions

Chemistry Questions

Physics Questions

Zoology Questions