Question

What is the rate of reaction for a bimolecular elementary reaction?

• A. $Z_{AB}{e}^{(}\frac{-E_a}{RT})$
• B. $Z_{AB}{e}^{(}\frac{E_a}{RT})$
• C. $-Z_{AB}{e}^{(}\frac{-E_a}{RT})$
• D. $-Z_{AB}{e}^{(}\frac{E_a}{RT})$

Answer 1

The correct option is A $Z_{AB}{e}^{(}\frac{-E_a}{RT})$

The rate of reaction is equal to the product of collision frequency of reactants and the fraction of molecules whose energies are equal to or greater than that of the energy of activation. Where Z_AB represents collision frequency of reactants, A and B and $e^{(}\frac{-E_a}{RT})$ represents a fraction of molecules with energies equal to or greater than E.