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NTA Abhyas NEET2020ChemistryChemical KineticsPractice

The activation energy of a reaction is zero. The rate constant (k) of the reaction

Options

  1. Aincreases with the increase in temperature
  2. Bdecreases with increase in temperature
  3. Cdecreases with the decrease in temperature
  4. Dis independent of temperature

Correct answer

D. is independent of temperature

Step-by-step solution

When the activation energy of a reaction is zero, the rate constant (k) of the reaction is nearly independent of temperature. E a = 0 So k = A e - E a / R T = A e - 0 = A Hence the rate constant is independent of temperature.

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