March 28, 2017

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Write a rate equation showing the dependence of rate in reactant concentrations for each of the following elementary reactions.

a. CS2---> CS + S
b. CH3Br + OH- --> CH3OH + Br-

A. k[CS2][S]
B. k[CH3][Br-][OH-]

  • Chemistry - ,

    Neither answer is correct. Forward reaction rates do not involve both reactants and products.

    Get rid of the product terms.

    A word of warning however: Chemical reactions often proceed by a multistep mechanism, in which case the overall rate cannot simply be written in terms of powers of reactant concentrations. I have misgivings about the way this subject is being taught.

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