Relative lowering in vapour pressure of a solution containing non volatile solute is the ratio of

Relative lowering in vapour pressure of a solution containing non volatile solute is the ratio of
  1. Number of moles of solute to number of moles of solvent.
  2. Number of moles of solvent to total number of moles of solution.
  3. Number of moles of solvent to number of moles of solute.
  4. Number of moles of solute to total number of moles of solution.

Solution

$\left(\frac{P_{0}-P}{P_{0}}\right)=x_{2}=\frac{n_{2}}{n_{1}+n_{2}}$

Asked in: MHT CET 2020 (19 Oct Shift 1)

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