Increasing concentration of solutions affects the rate of reaction by which effect?

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Study for the IGCSE Edexcel Chemistry Test. Access flashcards and multiple choice questions with hints and explanations. Get ready for your exam!

Multiple Choice

Increasing concentration of solutions affects the rate of reaction by which effect?

Explanation:
Increasing the concentration makes more particles present in the solution, so they collide more often. Each collision between reactant molecules has a chance to lead to a reaction if the energy is high enough and the molecules are oriented properly. With more collisions per second (while temperature stays the same), the number of successful collisions per second rises, so the rate of reaction increases.

Increasing the concentration makes more particles present in the solution, so they collide more often. Each collision between reactant molecules has a chance to lead to a reaction if the energy is high enough and the molecules are oriented properly. With more collisions per second (while temperature stays the same), the number of successful collisions per second rises, so the rate of reaction increases.

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