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]
For a reaction that is first order with respect to $[M]$, the rate of the reaction is $0.5s^{-1}$ when the concentration of $[M]$is$1.0 mol dm^{-3}$. What would be the most likely rate when the concentration of $[M]$for the same reaction is$1.0 mol dm^{-3}$?
A. $1.0s^{-1}$
B. $2.0s^{-1}$
C. $0.25s^{-1}$
D. $0.75s^{-1}$
参考答案: D
本题详细解析:
D Rate is directly proportional to the concentration of M as it is first order. As the concentration of M has been multiplied by 1.5, the rate (0.5s−1) must also be multiplied by 1.5.
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