This problem has two parts. The problem involves solving an isothermal flash drum. Benzene, 1-Propanol, and Dichloroethane enter a flash drum maintained at 56C and 440.5 mm Hg with overall mole fractions of 0.208, 0.25, and 0.542, respectively. Antoine coefficients A, B, C (for mmHg) are:

Benzene, 6.87987 1196.76 219.161 1-Propanol, 7.74416 1437.686 198.463 Dichloroethane, 7.0803 1138.91 231.45

(a) What are the vapor pressures (mmHg) at 56C? Use five significant figures.

Benzene: 339.28

1-Propanol: 124.24

Dichloroethane: 1312.8

(b) What is the VOF (vapor over feed) ratio in the drum? Use at least two decimal places.

NOTE: PLEASE HELP ME ONLY WITH SECTION (B)