Boiling of four liquids X,Y,Z and W are respectively 60°C,100°C,80°C and 75°C, When vapour of these of these substances are condensed which of them liquefy most easily?
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Explanation:
Vapour pressure or equilibrium vapour pressure is defined as the pressure exerted by a vapour in thermodynamic equilibrium with its condensed phases (solid or liquid) at a given temperature in a closed system.
The equilibrium vapour pressure is an indication of a liquid's evaporation rate. Thus it is related to the ease of vapour formation.
Higher is the boiling point difficult is the vapourization thus lower is the vapour pressure or vice-versa.
Among A, B, C, D lowest boiling point is for B i.e 60
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C thus will have the highest vapour pressure at room temperature.
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