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Question

CH3COOC2H5+NaOHCH3COONa+C2H5OH

Rate =K[CH3COOC2H5][NaOH]

If three times water is added to the reaction mixture, the rate of the reaction compared to the original rate will be:

A
13rd
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B
19th
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C
116th
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D
16 times
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Solution

The correct option is C 116th
The rate law expression is r=K[CH3COOC2H5][NaOH]
When three times water is added, the volume becomes four times the original volume.
Hence, the concentration of each reactant becomes one fourth.
The rate law expression becomes r=K.[CH3COOC2H5]4[NaOH]4=r16.

Hence, option C is correct.

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