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  1. If the temperature of a place increases suddenly, the relative humidity

  2. A.

     Increases

    B.

     Decreases

    C.

     Remains constant

    D.

     Fluctuates

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    Answer : Option B

    Explanation :

    Relative humidity is the ratio of the partial pressure of water vapour in an air-water mixture to the saturated vapour pressure of water at a prescribed temperature. The relative humidity of air depends not only on temperature but also on the pressure of the system of interest. If the system at State A is isobarically heated (heating with no change in system pressure) then the relative humidity of the system decreases because the saturated vapour pressure of water increases with increasing temperature.


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