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Answer the following in one or two sentences. For the reaction, CHA3BrA(aq)+OHA−A(aq)⟶CHA3OHA⊖A(aq)+BrA⊖A(aq), rate law is rate = k[CHA3Br][OHA⊖] How does reaction rate changes if [OHA⊖] is decreased

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Question

Answer the following in one or two sentences.

For the reaction, \[\ce{CH3Br_{(aq)} + OH^{-}_{(aq)} -> CH3OH^{\ominus}_{(aq)} + Br^{\ominus}_{(aq)}}\], rate law is rate = \[\ce{k[CH3Br][OH^\ominus]}\]

How does reaction rate changes if \[\ce{[OH^\ominus]}\] is decreased by a factor of 5?

Short Answer
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Solution

For the reaction, \[\ce{CH3Br_{(aq)} + OH^{-}_{(aq)} -> CH3OH^{\ominus}_{(aq)} + Br^{\ominus}_{(aq)}}\]

Rate = \[\ce{k[CH3Br][OH^\ominus]}\]

If \[\ce{OH^\ominus}\] is decreased by a factor of 5, keeping \[\ce{CH3Br}\] constant rate will decrease by a factor of 5.

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Chapter 6: Chemical Kinetics - Exercises [Page 136]

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Balbharati Chemistry [English] Standard 12 Maharashtra State Board
Chapter 6 Chemical Kinetics
Exercises | Q 2. ii. a. | Page 136

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