For a binary ideal liquid solution, the total pressure of the solution is given as:
Ptotal=P∘A+(P∘A−P∘B)XB
Ptotal=P∘B+(P∘A−P∘B)XA
Ptotal=P∘B+(P∘B−P∘A)XA
Ptotal=P∘B+(P∘B−P∘A)XB
Ptotal=PA+PB
=XAP∘A+XBP∘B
=XAP∘A+(1−XA)P∘B
=XAP∘A+P∘B−XAP∘B
=P∘B+(P∘A−P∘B)XA
The vapour pressure of a benzene – toluene binary solution at certain temperature is given by P=450–100XT. Where XT is the mole fraction of toluene. Find the vapour pressures of Benzene and Toluene in pure state.