1. dB dt = −dA dt =k.A dx dt =k ( a−x) dx ( a−x ) =kdt ∫ 0 x −d ( a−x) ( a−x ) = ∫ 0 t kdt −ln ( a−x ) | x 0 = k.t | t 0 −ln ( a−x ) +ln a=k ( t−0) −ln ( a−x ) +ln a=k.t Buat persamaanx masukan pers yg dikertas ya sel 2. −dA dt = −dB dt = dP dt =kAB = k ( a−x )( a−x ) dx dt =k ( a−x) 2 dx ( a−x) 2 =k dt ∫ x=0 x=x dx ( a−x) 2 = ∫ t =0 t =t k dt ln a a−x =k.t
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