Problem: What is the value of the rate constant k for this reaction?For the reaction A + B + C → D + E, the initial reaction rate was measured for various initial concentrations of reactants. The following data were collected:Trial()()()Initial Rate()10.100.100.1020.100.100.3030.200.100.1040.200.200.10

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order with respect to [A]

rate 3rate 1=[A]x at rate 3[A]x at rate 11.2x10-43.0×10-5=[0.200.1]x4 = 2x

x = 1 → first order


order with respect to [B]

rate 4rate 3=[B]y at rate 4[B]y at rate 31.2x10-41.2x10-4=[0.200.1]y1 = 2y

y = 0 → zeroth order


order with respect to [C]

rate 2rate 1=[C]z at rate 2[C]z at rate 19x10-53x10-5=[0.300.10]z3 = 3z

z = 1 → first order


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Problem Details

What is the value of the rate constant k for this reaction?

For the reaction A + B + C → D + E, the initial reaction rate was measured for various initial concentrations of reactants. The following data were collected:

Trial[\rm A](M)[\rm B](M)[\rm C](M)Initial Rate
(M/{\rm s})
10.100.100.103.0 \times 10^{-5}
20.100.100.309.0 \times 10^{-5}
30.200.100.101.2 \times 10^{-4}
40.200.200.101.2 \times 10^{-4}

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