Y=- 1 dCA=kzCCB a dt 人，(Cw-xXC如 Bx) a (1)若C0A/C0B=a/b 即初始浓度比等于计量系数之比 Cm-bC代入速率方程 2 Ic-k.(C-XC-B) a dt -k5(C-xy=C 18 18 A B A k C C dt dC a 2 1  = − = ( )( ) 2 0 0 x a b = k CA − x CB − (1) 若 C0A / C0B = a / b 即初始浓度比等于计量系数之比 B0 CA0 a b C = 代入速率方程 ( )( ) 1 2 0 0 x a b C a b k C x dt dC a r A A A = − = − − 2 2 2 0 ( ) ' A CA C x k a b = k − =