Part A: For a certain reaction, Kc = 326 and kf= 5.60103 M2s1 . Calculate the value of the reverse rate constant, kr , given that the reverse reaction is of the same molecularity as the forward reaction.

Part B: For a different reaction, Kc = 5.44, kf=302 s^-1 , and kr= 55.5 s^1 . Adding a catalyst increases the forward rate constant to 8.0010⁴ s^1 . What is the new value of the reverse reaction constant, kr, after adding catalyst?