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ChemistryNEET 2024Arrhenius equation and activation energy

Chemical Kinetics

The activation energy of any chemical reaction can be calculated if one knows the value of:

  1. A.probability of collision
  2. B.orientation of reactant molecules during collision
  3. C.rate constant at two different temperatures✓
  4. D.rate constant at standard temperature

Solution

The Arrhenius equation in two-temperature form, ln⁡k2k1=EaR(1T1−1T2)\ln\frac{k_2}{k_1} = \frac{E_a}{R}\left(\frac{1}{T_1} - \frac{1}{T_2}\right), gives EaE_a from rate constants measured at two temperatures.

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