Question

Define rate constant.

Answer 1

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Rate constant means a coefficient of proportionality relating the rate of a chemical reaction at a given temperature to the concentration of reactant (in a unimolecular reaction) or tothe product of the concentrations of reactants.
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Answer 2

Explanation:

rate constant coefficient of proportionality relating the rate of a chemical reaction at a given temperature to the concentration of reactant (in a unimolecular reaction) or to the product of the concentrations of reactants.