Which of the following statements about the composition of the vapour over an ideal $1:1$ molar mixture of benzene and toluene is correct? Assume that the temperature is constant at $25^{\circ}\mathrm{C}$. (Given, vapour pressure at $25^{\circ}\mathrm{C}$: benzene $=12.8\,\mathrm{kPa}$, toluene $=3.85\,\mathrm{kPa}$)
- ANot enough information is given to make a prediction
- BThe vapour will contain a higher percentage of benzene
- CThe vapour will contain a higher percentage of toluene
- DThe vapour will contain equal amounts of benzene and toluene
✓ Correct answer: B
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