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...Class xii cbse chemistry chemical kinetics ncert solutions for chapter back of questions the reaction r p concentration a reactant changes from m to in minutes calculate average rate using units time both and seconds solution given change intervel t min negative sign indicate decrease s concept insight depends upon reactants or products taken that occur disappearance appearance increase decreases mol l during this interval practice more on page www embibe com expression where stoichiometric coefficients are not equal one any is divided by their respective b product law k what order sum power called hence actants conversion molecules x y follows second if increased three times how will it affect formation therefore equation be let then can written as ka now nine first has constant long g take reduce initial amount final formula log put values above approx required decompose so cl half its decomposition st putting value...