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Threshold energy is the sum of ___________

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in Engineering Chemistry I by (506k points)
Threshold energy is the sum of ___________

(a) Internal energy and external energy of reactants

(b) Activation energy and external energy of reactants

(c) Activation energy and internal energy of reactants

(d) Activation energy and thermal energy

The question was posed to me during an interview.

This question is from Pseudo Order Reaction in division Reaction Dynamics of Engineering Chemistry I

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The correct choice is (c) Activation energy and internal energy of reactants

Easiest explanation: Threshold energy is the sum of activation energy and internal energy of reactants. The threshold energy for the production of a particle is the minimum kinetic energy a pair of traveling particles must have when they collide.

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