If the concentration of water is high enough,we can assume it is constant(the reaction is first zero
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.
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...
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