.-2a.-0 K2-Kx(p) LnKg=LnKx+△LnP-△LnP △V ap ap OLnKx △y △.V RT 14 14 ( ) ( ) = 0 = T C T P P LnK P LnK = ( ) P P KP KX LnKP = LnKX + LnP − LnP ( ) ( ) = 0 + = P P LnK P LnK T X T P RT V P P LnK r m T X = − = − ( )