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\[P\times V.P\]\[\text{of}\]\[P\] + mole fraction of\[Q\times V.P.\]\[\text{of}\]\[Q\] \[=\left( \frac{3}{5}\times 80+\frac{2}{5}\times 60 \right)=48+24\] \[=72\,\,Torr\]You need to login to perform this action.
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