The relative lowering of the vapour pressure | vedclass

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(B) According to Raoult's law for a dilute solution containing a non-volatile solute,the relative lowering of vapour pressure is given by the expressi

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Solute molecules and the total molecules in the solution

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(B) According to Raoult's law for a dilute solution containing a non-volatile solute,the relative lowering of vapour pressure is given by the expression: $\frac{P^o - P}{P^o} = X_{solute} = \frac{n}{n + N}$.Here,$n$ is the number of moles of solute and $N$ is the number of moles of solvent.Therefore,the relative lowering of vapour pressure is equal to the ratio of the number of solute molecules to the total number of molecules in the solution $(n + N)$.

The relative lowering of the vapour pressure is equal to the ratio between the number of

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