Question:
Account for the following:
(I) We cannot determine the order of a reaction by taking into consideration the balanced chemical equation.
(II) A bimolecular reaction may become kinetically first order under a specified condition.
Account for the following:
(I) We cannot determine the order of a reaction by taking into consideration the balanced chemical equation.
(II) A bimolecular reaction may become kinetically first order under a specified condition.
(I) We cannot determine the order of a reaction by taking into consideration the balanced chemical equation.
(II) A bimolecular reaction may become kinetically first order under a specified condition.
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The reaction order must be determined experimentally, as it depends on the mechanism and concentration dependencies, not just the balanced equation.
Updated On: Jun 24, 2025
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Solution and Explanation
(I) The balanced chemical equation does not provide any direct information about the reaction order. The order of a reaction is determined experimentally by observing how the rate changes with respect to the concentration of reactants.
(II) A bimolecular reaction may become first order under certain conditions, such as in the presence of a large excess of one reactant, which makes the concentration of that reactant effectively constant. This can make the reaction appear to be first order with respect to the other reactant.
(II) A bimolecular reaction may become first order under certain conditions, such as in the presence of a large excess of one reactant, which makes the concentration of that reactant effectively constant. This can make the reaction appear to be first order with respect to the other reactant.
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