n moles of an ideal gas A ad (1-n) moles of an ideal gas B, each at 1 atm pressure, are mixed at total constant pressure. what ratio of A to B in the mixture maximizes the decrease in the Gibbs free energy of the system? If the decrease in the Gibbs free energy is delta G^M, to what value must the pressure be increased in order to increase the Gibbs free energy of the gas mixture by (deltaG^M)/2?