Rate constant for a reaction ${H_2} + {I_2} \to 2HI$ is $49$, then rate constant for reaction $2HI \to {H_2} + {I_2}$ is
Rate constant for a reaction ${H_2} + {I_2} \to 2HI$ is $49$, then rate constant for reaction $2HI \to {H_2} + {I_2}$ is
- A
$7$
- B
$1/49$
- C
$49$
- D
$21$
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