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Q. 1.0 L of 2.0 M acetic acid is added with 1.0 L of 3.0 M ethyl alcohol. The following reaction takes place during this process
$ C{{H}_{3}}COOH+{{C}_{2}}{{H}_{5}}OH $ $\rightleftharpoons C{{H}_{3}}COO{{C}_{2}}{{H}_{5}}+{{H}_{2}}O $
If each solution is diluted by adding 1.0 L water, then initial rate of the reaction will reduce

Rajasthan PETRajasthan PET 2008

Solution:

$ C{{H}_{3}}COOH+{{C}_{2}}{{H}_{5}}OH\to C{{H}_{3}}COO{{C}_{2}}{{H}_{5}}+{{H}_{2}}O $ This is a second order reaction. Hence, initial rate of the reaction will reduced by (1/2)2 ie, 0.25 times.