In the case of a two-component equimolar solution this is Rln2 (= 5.76 J/mol K), for a threecomponent solution = Rln3 (= 9.13 J/mol K), for a five-component solution = Rln5= 1.61 R (13.38 J/mol K), etc. If the temperature is of the order of 1000 K, the contribution to the Gibbs energy will be significant as well (about 13kJ/mol).