A) \[mo{{l}^{-1}}L\,{{s}^{-1}}\]
B) \[{{s}^{-1}}\]
C) \[s\]
D) \[{{s}^{-1}}mol\,{{L}^{-1}}\]
Correct Answer: A
Solution :
For the homogenous gaseous reaction, \[A+B\xrightarrow{k}C,\]the rate law is \[\frac{dx}{dt}=k[A][B]\] or \[k=\frac{dx}{dt\times [A][B]}\] \[=\frac{mol\,{{L}^{-1}}}{time\times mol\text{ }{{L}^{-1}}\times mol\text{ }{{L}^{-1}}}\] or unit of rate constant k is\[mo{{l}^{-1}}L\text{ }tim{{e}^{-1}}\]or, \[mo{{l}^{-1}}L\,{{s}^{-1}}\].
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