According to Raoult's law, relative lowering of vapour pressure for a solution containing a non volatile…
According to Raoult's law, relative lowering of vapour pressure for a solution containing a non volatile solute is eal to
mole fraction of solvent
moles of solute
moles of solvent
mole fraction of solute
Solution
According to Raoult's law, the relative lowering of vapour pressure for a solution containing a nonvolatile solute is proportional to the mole fraction of the solute. The law states:
$\frac{\Delta P}{P_0}=\chi_{\text {solute }}$
Where:
- $\Delta P$ is the lowering of vapour pressure,
- $P_0$ is the vapour pressure of the pure solvent,
- $\chi_{\text {solute }}$ is the mole fraction of the solute.