Suppose a reaction rate constant has been measured at two diferent temperatures T1 AND T2 and its value is K1?

Question

and K2

A)write arrhenius equation at each temperature?

B)by combining these two equations derive an expression for ratio of two rate constant K1/K2?

Answer 1

The Arrhenius expressions are as follows:

k1=A*exp(-Ea/R*T1)

k2=A*exp(-Ea/R*T2)

so K1/K2 = exp(-Ea/R*T1) / (exp(-Ea/R*T2)) = exp (T2/T1)