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Concentration of the reactants is __________ proportional to the number of collisions and _________ proportional to the reaction rate.

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in Engineering Chemistry I by (506k points)
Concentration of the reactants is __________ proportional to the number of collisions and _________ proportional to the reaction rate.

(a) Directly, inversely

(b) Directly, directly

(c) Inversely, directly

(d) Inversely, inversely

I got this question in an interview.

The origin of the question is Molecularity of a Reaction topic in portion Reaction Dynamics of Engineering Chemistry I

1 Answer

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Correct option is (b) Directly, directly

Explanation: Concentration of the reactants is directly proportional to the number of collisions and also directly proportional to the reaction rate. The more the collision, more will be the reaction rate and hence more will be the concentration of reactants.

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