Problem 7.8:
A fluid that is gas under ambient conditions is stored in a 2 m3 tank. The amount of the gas in the tank is 150 mol. Estimate the fugacity of the gas. State your assumptions clearly.
Problem 7.9: Over a limited range of pressures, an unspecified gas obeys this equation of state,
where a is constant.
a) Derive an expression for the fugacity coefficient.
b) At 30 °C, 1 bar, the compressibility factor of this gas is 0.88. Estimate its fugacity.
c) Calculate the residual Gibbs energy of the gas at 30 °C 1 bar.