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Define "lowering of vapour pressure". Give equation for Raoult' s law of relative lowering of vapour pressure. |
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Answer» Solution :DIFFERENCE between vapour pressure of a pure solvent and that of the solution. OR When a non-volatile solute is dissolved in a volatile solvent, va.pour pressure of the solution decreases. `(P^(0) - P)/(P^(0)) = (n_(2))/(n_(1) + n_(2))` OR `(P^(0) - P)/(P^(0)) = X_(B)` OR `(P_(A)^(0) - P_(S))/(P_(A)^(0)) = (n_(2))/(n_(1) + n_(2))` . |
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