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14 December, 04:25

The reaction A→B has been experimentally determined to be second order. The initial rate is 0.0100M/s at an initial concentration of A of 0.300M. Determine the initial rate at [A]=0.900M.

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  1. 14 December, 07:09
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    Let us assume that the reaction is elementary such that the rate law for this is,

    R = - k[A]

    Substituting the first set of given to determine the value of k,

    0.0100 M/s = - k (0.300M)

    The value of k is - 1/30s. Substituting the second set,

    R = (-1/30s) (0.900M) = 0.03 M/s

    Thus, the initial rate is equal to 0.03 M/s.
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