Which of the following statements about the composition of the vapour over an ideal `1:1` mol mixture of benzene and toluene is correct? Assume that the temperature is constant at `25^(@)C`. (Given: vapour pressure Date at `25^(@)C`, benzene=12.8 kP, toluene=3.85 kPa)

Options

A. Not enough information is given to make a prediction.
B. The vapour will contain a higher percentage of benzene .
C. The vapour will contain a higher percentage of toluen.
D. The vapour will contain equal amounts of benzene and toluene.

Answer

B

Explanation

Due to high partial vapour pressure of benzene as compare to that of toluene,the mole fraction of benzene will be higher than of toluene.As a result the vapour will contain a higher percentage of benzene.