Question

The rate constant, Arrhenius constant (pre-exponential factor) of the chemical reaction and the activation energy of a chemical reaction at $25^\circ C$ are $4\times 10^{- 4}sec^{- 1}$ $16\times 10^{14}sec^{- 1}$ and $200kJ/mol$ respectively. The value of rate constant at $T \rightarrow \infty $ is.

• A. $2\times 10^{18}sec^{- 1}$
• B. $16\times 10^{14}sec^{- 1}$
• C. Infinity
• D. $4\times 10^{- 4}sec^{- 1}$

Answer 1

Answer: (B)

$K=Ae^{- Ea / RT}$
as $T \rightarrow \infty ;K \rightarrow A$