The specific rate of reaction for the first order reaction depends upon :-

pressure

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temparature

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concentration of Reactant

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concentration of product

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Solution

The correct option is D temparature
As the specific rate of a reaction for the first order i.e. rate constant for the first-order reaction is given by:
$k = A e^{- E a / R T}$
So, rate constant depends upon temperature only.

Hence, Option "B" is the correct answer.

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