The Arrhenius number (Ar) is the dimensionless parameter describing the ratio of activatio...

The Arrhenius number (Ar) is the dimensionless parameter describing the ratio of activation energy to thermal energy, often used in chemistry. It depends on the following quantities:

Ea = activation energy [=] J/mol

R = ideal gas constant [=] (atm L)/(mol K)

T = temperature [=] K

Use your knowledge of dimensions to determine the proper form of the Arrhenius number.

(A) Ar =

(B) Ar = EaRT

(C) Ar =

(D) Ar =