题目

If the concentration of water is high enough,we can assume it is constant(the reaction is first zero-respect to water).In this case,the concentration of methyl formate in water is given by the following expression:[methyl formate]=[methyl formate](0)*e^(-Keff*t)
where [methyl formate](0) is the concentration of methyl formation at the start of the reaction,Keff is the effective constant,and t is time.
Prove that the expression above agrees with the rate law and write an expression for Keff of K=0.0233 and the concentration of water.

提问时间：2021-03-12

答案

C=C0e^-Keff*t两边对 t 求导, 有dC/dt=-Keff*C0*e^-Keff*t=-Keff*C所以,C的减少速率 =-dC/dt=Keff*C 是浓度C的一次方的函数（first order relative to C) Keff=K*[H2O]=0.0233[H2O]therefore, C的减少速率 =-dC/dt=K...