1. Tardigrade
  2. Question
  3. Chemistry
  4. Consider the following two first order reactions occuring at 298 K with same initial concentration of A: (1) Aarrow B; rate constant, k = 0.693 min-1 (2)AarrowC;half - life, t½ = 0.693 min Choose the correct option :

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Q. Consider the following two first order reactions occuring at 298 K with same initial concentration of A:
(1) A$\rightarrow$ B; rate constant, k = 0.693 min$^-1$
(2)A$\rightarrow$C;half - life, t$_½$ = 0.693 min
Choose the correct option :

WBJEEWBJEE 2019Chemical Kinetics

Solution:

$For reaction \left(1\right); k_{1}= 0.693 min^{-1}$
$For reaction \left(2\right); k_{2} =\frac{0.693}{0.693} =1min^{-1}$
$Rate of reaction \propto k$