Pressure exerted by saturated water vapour is | vedclass

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(B) When a gas is collected over water,it becomes saturated with water vapours,which exert their own partial pressure known as aqueous tension. The to

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Subtract aqueous tension

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(B) When a gas is collected over water,it becomes saturated with water vapours,which exert their own partial pressure known as aqueous tension. The total pressure observed $(P_{	ext{moist gas}})$ is the sum of the partial pressure of the dry gas and the aqueous tension: $P_{	ext{moist gas}} = P_{	ext{dry gas}} + P_{	ext{aqueous tension}}$ To obtain the pressure of the dry gas,we rearrange the equation: $P_{	ext{dry gas}} = P_{	ext{moist gas}} - P_{	ext{aqueous tension}}$ Therefore,the correction term applied is to subtract the aqueous tension from the total pressure.

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

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