The excess Gibbs energy of solutions of methylcyclohexane (MCH) and tetrahydrofuran (THF) at 303.15 K was found to fit the expression
G E = RTx(1- x)[0.4857 – 0.1077(2x -1) + 0.0191(2x – 1)2 ]
where x is the molar fraction of the methylcyclohexane. Calculate the Gibbs energy of mixing when a mixture of 1.00 mol of MCH and 3.00 mol of THF is prepared.
