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  • Raising the concentration of a particular reactant by a factor of 5 increases the reaction rate 25 times. What is the kinetic order of this reactant?Option: 1</s

Raising the concentration of a particular reactant by a factor of 5 increases the reaction rate 25 times. What is the kinetic order of this reactant?

Option: 1

2


Option: 2

0


Option: 3

1


Option: 4

3


Answers (1)

best_answer

Let the reaction rate -

r \propto[A]^{a}\: \: \: \: \: \: \: ....(\mathrm i)

Raising the concentration of a particular reactant by a factor of 5 increases the reaction rate 25 times.


\begin{array}{l}{25 r \propto[5 \mathrm{A}]^{a}\: \: \: \: ....(\mathrm {ii})} \\\\ {\text {Dividing equation (ii) by (i) }}\end{array}

\\\\ {\frac{25 r}{r} \propto \frac{[5 A]^{a}}{[A]^{a}}} \\\\ {a=2, \text { second order reaction }}

Therefore, Option(1) is correct.

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