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Consider the following plots of log of rate constant k ( k ) vs 1 ~T for three different reactions. The correct order of activation energies of these reactions is

Options

  1. AEa ₂ Ea ₁ Ea ₃
  2. BEa ₁ Ea ₃ Ea ₂
  3. CEa ₁ Ea ₂ Ea ₃
  4. DEa ₃ Ea ₂ Ea ₁

Correct answer

A. Ea ₂ Ea ₁ Ea ₃

Step-by-step solution

aligned & K = A e ^ - E a RT & logk = A - Ea 2.303 RT aligned For graph between logk with 1 ~T Slope of curve ,= Ea 2.303 R . From given graph Magnitude of slope (2) (1) (3) Hence Ea ₂ Ea ₁ Ea ₃

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