題組內容

4. It is necessary to determine the vapor-liquid equilibrium composition for designing a separation process for a binary mixture of perfluoro-n-heptane and n-heptane at 25 ℃ At this temperature, the vapor pressure of pure perfluoro-n-heptane is 0.1101 bar, and the vapor pressure of pure n-heptane is 0.0601 bar.

(d) (3%) Which model (ideal solution or regular solution) provides better estimation of gas phase compositions? Please give the reason according to the gas phase composition results in (a) and (c).