At a given temperature the vapour pressures of benzene and toluene are 183 mmHg and 59.2 mmHg,respectively.Calculate the total vapour pressure over a solution of benzene and toluene with x_benzene = 0.580. A)106 mmHg B)121 mmHg C)131 mmHg D)242 mmHg

Question

Quizplus · Accepted Answer

The total vapour pressure over the solution can be calculated using Raoult's law: PTotal = X_benzene * PBenzene + (1 - X_benzene) * PToluene PTotal = 0.580 * 183 mmHg + (1 - 0.580) * 59.2 mmHg PTotal = 131 mmHg Therefore, the correct choice is C.

At a Given Temperature the Vapour Pressures of Benzene and Toluene