A) 7.53 min
B) 0.383 min
C) 23.1 min
D) 8.73 min
Correct Answer: C
Solution :
For a first order reaction, \[Rate=k.(cone.)\] \[k=\frac{rate}{conc.}=\frac{1.5\times {{10}^{-2}}}{0.5}=3\times {{10}^{-2}}{{\min }^{-1}}\] \[{{t}_{1/2}}=\frac{0.693}{k}=\frac{0.693}{3\times {{10}^{-2}}}\min \] \[=23.1\text{ }min\]You need to login to perform this action.
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