(C) The temperature dependence of the rate of a chemical reaction is expressed by the Arrhenius equation: $k = A e^{-E_{a} / (RT)}$.When $T$ is very h

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(C) The temperature dependence of the rate of a chemical reaction is expressed by the Arrhenius equation: $k = A e^{-E_{a} / (RT)}$.When $T$ is very high,the factor $E_{a} / (RT)$ approaches $0$.Therefore,$k = A e^{0} = A \times 1 = A$.Thus,the rate constant of a chemical reaction at a very high temperature will approach the Arrhenius frequency factor $(A)$.

Class 12 Chemistry Chemical Kinetics Collision theory, Energy of activation and Arrhenius equation

Medium

The rate constant of a chemical reaction at a very high temperature will approach:

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A
Arrhenius frequency factor divided by the ideal gas constant
B
Activation energy
C
Arrhenius frequency factor
D
Activation energy divided by the ideal gas constant

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Class 12

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Chemical Kinetics

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Collision theory, Energy of activation and Arrhenius equation

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Medium

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The rate constant of a chemical reaction at a very high temperature will approach:

Similar Questions

What is threshold energy?

When the temperature of a reaction is increased from $300 \ K$ to $310 \ K$,the rate of the reaction increases by $2.5$ times. If the rate constant of the reaction at $300 \ K$ is $K$,what will be the rate constant at $310 \ K$?

For a first-order reaction $A \rightarrow P$,the rate constant $k$ depends on temperature $(T)$ according to the equation $\log \, k = - \frac{2000}{T} + 0.6$. The pre-exponential factor $A$ and the activation energy $E_a$ are,respectively:

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For a reaction,activation energy $E_a = 0$ and rate constant $K = 3.2 \times 10^6 \ s^{-1}$ at $300 \ K$. What is the value of the rate constant at $300 \ K$?

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