Estimate the liquid and vapor compositions of a binary mixture of isobutene (a) and hydrogen sulfide (b) at the 4.5oC and8.77bar. The excess Gibbs energy can be illustrated by the three suffix mar gules equation with these parameters.
A= 1918(J/mol) and B= -1074 (J/mol)
1. Suppose the vapor can be treated as an ideal gas.