例子:A,G Pressure Dependence of G Calculate the AGm of (a)H,o( treated as an incompressible fluid, and (b H, o treated as a perfect gas when pressure is increased isothermally from 1.0 bar to 2.0 bar at 298 K G(Pe-G(p 中=Vn×(P-P1) P (18.0×10°m3mo)×(1.0×105Pa)++18Jmo P RT G()-G(p. dp= RT In P =(2.48 kJ mol-1)x In(2.0)=+1.7 kJ mol-1 1000倍1000倍! 例子: A, G