2013-3-6 Evaluating U,H,and S for Ideal Gas Mixtures (Molar Basis) The mixture specific heats c,and c,are mole- fraction averages of the respective component specific heats. 6=2a 6-2 (Eq.12.23) (Eq.12.24) See Sec.12.4 for applications using these expressions for U,H,S,and the specific heats Evaluating U,H,and S for Ideal Gas Mixtures (Mass Basis) specific eoesnornS Table 12.2 R-A月，-yP ic..( 7 2013-3-6 7 Evaluating U, H, and S for Ideal Gas Mixtures (Molar Basis) ►See Sec. 12.4 for applications using these expressions for U, H, S, and the specific heats. ►The mixture specific heats and are mole￾fraction averages of the respective component specific heats. vc p c (Eq. 12.23) (Eq. 12.24) Evaluating U, H, and S for Ideal Gas Mixtures (Mass Basis) ►When working on a mass basis the expressions for U, H, S, and specific heats of a mixture consisting of two components – a binary mixture – are: Table 12.2