For the reaction, [cis-M(en)2(OH)2 ]+ k2k1 [trans-M(en)2(OH)2 ]+ the equilibrium constant is 0.16 and k1 is 3.3 10-4 s-1. The experiment is started with pure cis form. The time taken for half the equilibrium amount of trans isomer to be formed is about

ABC26PH1041 · Elementary Process Rate Constant

Subject: Physical Chemistry · Chapter: Elementary Process Rate Constant · Topic: Elementary Process Rate Constant – General · Exam: NET JUNE 2021 · Marks: 2 · Difficulty: Hard

For the reaction,

\[ \left[\operatorname{cis}-\mathrm{M}(\mathrm{en})_{2}(\mathrm{OH})_{2}\right]^{+} \underset{\mathrm{k}_{2}}{\stackrel{\mathrm{k}_{1}}{\rightleftharpoons}}\left[\operatorname{trans}-\mathrm{M}(\mathrm{en})_{2}(\mathrm{OH})_{2}\right]^{+} \]

the equilibrium constant is 0.16 and $\mathrm{k}_{1}$ is $3.3 \times 10^{-4} \mathrm{s}^{-1}$. The experiment is started with pure cis form. The time taken for half the equilibrium amount of trans isomer to be formed is about

(a)290 s

(b)580 s

(c)190 s

(d)480 s

Answer

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Explanation

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