A) 140 torr
B) 20 torr
C) 68 torr
D) 72 torr
Correct Answer: D
Solution :
Mole fraction of \[P=\frac{3}{3+2}=\frac{3}{5}\] Mole fraction of \[Q=\frac{2}{3+2}=\frac{2}{5}\] Hence, total vapour pressure = Mole fraction of P × V. P of P + mole fraction of Q × V.P. of Q \[=\left( \frac{3}{5}\times 80+\frac{2}{5}\times 60 \right)=48+24\] \[=72\,Torr\]You need to login to perform this action.
You will be redirected in
3 sec