Chemical Equilibrium and Chemical KineticsLearning Goal:To understand the relati

Question

Chemical Equilibrium and Chemical KineticsLearning Goal:To understand the relationship between the equilibrium constant and rate constants.For a general chemical equationA+B?C+D the equilibrium constant can be expressed as a ratio of the concentrations:K c =[C][D] [A][B]If this is an elementary chemical reaction, then there is a single forward rate and a single reverse rate for this reaction, which can be written as follows:forward rate reverse rate = = k f [A][B] k r [C][D]where k f and k r are the forward and reverse rate constants, respectively. When equilibrium is reached, the forward and reverse rates are equal:k f [A][B]=k r [C][D]Thus, the rate constants are related to the equilibrium constant in the following manner:Kc =k f k l =[C][D] [A][B]Part AFor a certain reaction, K c = 5.21

Explanation / Answer

k f [A][B]=k r [C][D

Kc= kr/kf = 5.21

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