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KCET2023ChemistryChemical Kinetics

For a reaction, the value of rate constant at 300 ~K is 6.0 10^5 ~s ⁻¹ . The value of Arrhenius factor A at infinitely high temperature is

Options

  1. A6 * 10^5 e^ -E_a / 300 R
  2. Be^ -E_a / 300 R
  3. C6 10⁻⁵ 300
  4. D6 10^5

Correct answer

D. 6 10^5

Step-by-step solution

Given, k=6 10^5 ~s ⁻¹ Using the formula of Arrhenius equation, k=e^ E_a / R T At T= , -E_a R T will become zero. So, k=A e^0 k=A Thus, k=A=6 10^5

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