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From Maxwell Boltzmann distribution it can be deduced that the fraction of collisions with more energy than the activation energy is . but from my understandint minimum energy needed = threshold energy so, in place of Ea it should be thershold i,.e. Ea + energy of molecules(KE) any comments? and in NCERT there is a blunder where its written that rate = PZe^-E/RT is written but that is the rate constant ..

From Maxwell Boltzmann distribution it can be deduced that the fraction of collisions with more energy than the activation energy is e^{\frac{-E_a}{k_BT}}.
 
but from my understandint minimum energy needed = threshold energy so, in place of Ea it should be thershold i,.e. Ea + energy of molecules(KE) any comments? and in NCERT there is a blunder where its written that rate = PZe^-E/RT is written but that is the rate constant .. 

Grade:12

1 Answers

Charchit Tailong
askIITians Faculty 147 Points
8 years ago
Energy of molecules(KE) is negligible in comparision to Energy,so we dont take such a small value.

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