A)For a certain reaction, K_c=1.36×10^{?9} and k_ f=5.84×10^{5} M^-2*s^-1 . Calculate the value of the reverse rate constant, k_r, given that the reverse reaction is of the same molecularity as the forward reaction.
B)For a different reaction, K_ c=0.916 , k_ f=78.9 s-1 , and k_ r=86.1 s^-1 . Adding a catalyst increases the forward rate constant to 3.65×10^4 s^-1. What is the new value of the reverse reaction constant, k_r, after adding catalyst?


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