aA dD Tp9,d→ gG+hH s aA dD 298K,p9,A,S9298x →gG+hH T △Cpm T T 33 aA + dD ⎯⎯⎯⎯→    r m T T ,P , S gG + h H ΔS  1 ΔS  2 aA + dD ⎯⎯⎯⎯⎯ ⎯→    ( 298 ) 298 , , r m K K P S gG + h H Δ r S  m(T ) =Δ r S  m(298K) + dT T T CP m   298 , P r m T S ( )    = T CP,m 或 V r m T S ( )    = T CV ,m