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The integrated rate law for the zero-order reaction A âB is [A] t = [A] 0 â kt. (a) Sketch the following plots: (i) rate versus [A] t and. (ii) [A] t versus t. (b) Derive an expression for the half-life of the reacÂ­tion. (c) Calculate the time in half-lives when the inÂ­tegrated rate law is no longer valid, that is, when [A] t = 0. STEP-BY-STEP SOLUTION. JavaScript Not Detected. JavaScript is required to view textbook solutions.
ORDER OF REACTION. Sum of the powers of the concentration terms in the rate equation is called overall order of the reaction. Hence the order of above reaction = x + y + z. * The order of a reaction and hence the rate law must be determined experimentally and cannot be predicted from the stoichiometric equation. However in the cases of simple reactions, the rate expression can be written according to the stoichiometric equation.