Question

In the Arrhenius equation, $k=A{e}^{-E_a/RT}$, the rate constant $\left(k\right)$ becomes equal to the Arrhenius constant $\left(A\right)$, when:

• A. the temperature becomes infinite
• B. the $100$% reactants are converted to product
• C. the fraction of molecules crossing over the energy barrier is unity
• D. the temperature of the reaction mixture is very low

Answer 1

Answer: (A), (B), (C)

the temperature becomes infinite
the $100$% reactants are converted to product
the fraction of molecules crossing over the energy barrier is unity

In this condition the temperature is infinite and the reaction is 100% complete and all reactants are converted to the product. When all reactant is converted means the molecules crossing over the energy barrier is unity reaction is complete when the temperature is very high and constant