An ideal solution which is having of 3.25 mol of toluene and 5.00 mold benzene is placed in a cylinder and piston assembly. At 298 k, the vapour pressure of the pure substances are P (benzene)= 96.4 torr and P (toulene)= 28.9 torr.
1. Discuss at what pressure does the vapor phase first appear?
2. Calculate the composition of the vapor under these conditions?