本题目来源于试卷: How Much How Fast & How Far E.2 Rate of Chemical Change，类别为 IB化学
[单选题]
If the unit of rate constant,$\kappa$, for a reaction is $mol^{-2}$ $dm^6$ $s^{-1}$, what is the overall order of the reaction?
A. 4
B. 3
C. 2
D. 1
参考答案: A
本题详细解析:
B Units for $\kappa$are determined by dividing the units of rate by the units of the concentrations raised to their respective powers.
For a 3rd order reaction,k= mol3dm−9moldm−3s−1= $mol^{-2}$$dm^6$ $s^{-1}$
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