State Raoult’s law for a solution containing volatile components. Write two characteristics of the solution which obeys Raoult’s law at all concentrations.
In a solution, the vapour presence of a compound at a given temperature is equal to the mole fraction of that compound in the solution multiplied by the vapour pressure of that component in the pure state.
Let's consider a mixture of two volatile liquids A & B, having mole fraction &
and partial vapour pressure
&
, and
,
be their vapour pressure in the pure state respectively.
The two characteristics of the solution which obeys Rault's law at all concentrations are as: