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The rate of formation of a dimer in a second order reaction is 7.5 × 10−3 mol L−1s−1 at 0.05 mol L−1 monomer concentration. Calculate the rate constant.

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प्रश्न

The rate of formation of a dimer in a second order reaction is 7.5 × 10−3 mol L−1s−1 at 0.05 mol L−1 monomer concentration. Calculate the rate constant.

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उत्तर

Let us consider the dimerisation of a monomer M

\[\ce{2M -> (M)2}\]

Rate = k [M]n

Given that n = 2 and [M] = 0.05 mol L−1

Rate = 7.5 × 10−3 mol L−1s−1 

k = `"Rate"/["M"]^"n"`

k = `(7.5 xx 10^-3)/((0.05)^2)`

k = 3 mol−1Ls−1

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Factors Affecting the Reaction Rate
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पाठ 7: Chemical Kinetics - Evaluation [पृष्ठ २३०]

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सामाचीर कलवी Chemistry - Volume 1 and 2 [English] Class 12 TN Board
पाठ 7 Chemical Kinetics
Evaluation | Q 11. | पृष्ठ २३०
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