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JEE Main20208 Jan 2020Evening ShiftChemistryHydrocarbonsActual

Consider the following plots of rate constant versus 1 T for four different reactions. Which of the following orders is correct for the activation energies of these reactions?

Options

  1. AE b > E a > E d > E c
  2. BE a > E c > E d > E b
  3. CE c > E a > E d > E b
  4. DE b > E d > E c > E a

Correct answer

C. E c > E a > E d > E b

Step-by-step solution

logk = logA - E a 2 .303 RT Slope = - E a 2 .303 RT ⟹ E c > E a > E d > E b

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