LnK=LnK&+△LnT+△Ln .-(.+ V △，H品 T RT2 △V m RT2 T RT2 △，U RT 1111       = ( ) P RTC KP KC       P RC LnKP = LnKC +  LnT +  Ln 2 ( ) ( ) RT H T T LnK T LnK r m P C P P      =  +   =   2 2 ( ) RT U RT T H T LnK r m r m P C      =  −  =   2 ( ) RT U T LnK r m P C    =  