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what is mathematical formula of rate law. Above is the second law of motion formula. This derivative is the slope of a graph of concentration against time taken at a particular time.
We think of the rate as the derivative of concentration with respect to time. A differential rate law expresses the reaction rate in terms of changes in the concentration of one or more reactants D R over a specific time interval Dt. As we know the rate of change of momentum with respect to time is proportional to the applied force.
The rate equation of a reaction with a multi-step mechanism cannot in general be deduced from the stoichiometric coefficients of the overall reaction.
For a general reaction aA bB cC ---------- products the rate law can be written as. The differential equation that describes the mathematical dependance of rate of reaction on the concentration terms of the reactants is called rate law or rate expression or rate equation. In general a rate law or differential rate law as it is sometimes called takes this form. Because the numbers can travel back and forth like a commuter.