Chemistry · 10-12

Rate of Reaction and Chemical Kinetics

The rate of reaction measures how quickly reactants are consumed or products are formed. Chemical kinetics explores factors affecting reaction rates a

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What is the difference between reaction rate and rate constant?

Reaction rate is how fast reactants are consumed or products form (changes with concentration and temperature). Rate constant (k) is a fixed value at a given temperature that relates concentration to rate in the rate law. Rate = k[A]^n where k is the rate constant.

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How do catalysts increase reaction rates without being consumed?

Catalysts provide alternative reaction pathways with lower activation energy. They bind to reactants, forming intermediates that lead to products more easily, then regenerate unchanged. They do not change the overall energy change of the reaction.

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Why do some reactions proceed faster at higher concentrations?

Higher concentration increases collision frequency between reactant particles. More particles in a given volume means more collisions per unit time, increasing the probability of effective collisions that lead to reaction.

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