Pressure exerted by vapour in thermodynamic equilibrium with solid or liquid is called :
A
liquid pressure
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B
solid pressure
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C
vapour pressure
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D
none of the above
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Solution
The correct option is C vapour pressure The pressure exerted by vapour in thermodynamic equilibrium with solid or liquid is called vapour pressure. A solid or liquid is always in equilibrium with its vapour.
The equilibrium vapour pressure is an indication of a liquid's evaporation rate.