1. The Gibbs energy of a binary mixture of species a and species b at 300 K and 10 bar is given by the following expression: g=-40x, 60x4 +RT (x, In x, + x, In xo) +5x2x6[kJ/mol] For a system containing 1 mole of species a and 4 moles of species b, find the following: },,G,G,AG mix