What is the difference between rate …
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Gaurav Seth 6 years, 1 month ago
The rate expression can be defined as an expression in which the rate of reaction is given as the product of the molar concentration of the reactants, with each term raised to some power, which may or may not be the stoichiometric coefficients of the reacting species in a balanced chemical equation.
The rate constant can be defined as the rate of reaction when the concentration of each of the reactant is taken as unity.
Example:
The rate expression for the above reaction can be written as follows:
Now, if the concentration of NO and O2 is taken to be unity, then the rate constant is found to be equal to the rate of the reaction.
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