1.

1L to 2M CH_(2)COOH is mixed with 1L to 3M C_(2)H_(5)OH to form an ester.The rate of the reaction with respect to the initial rate when each solution is diluted with an equal volume of water will be

Answer»

0.25 times
2 times
0.5 times
4 times.

Solution :(a) : `R = k[CH_(3)COOH][C_(2)H_(5)OH]`
`r_(i)` = k[2 M][3 M]…(i)
`r_(f) = k [(2 M)/(2)][(3 M)/(2)]`…(II)
On dividing (ii) by (i), we get
`(r_(f))/(r_(i)) = (k[M][3/2 M])/(k[2 M][3 M]) = 0.25`
`:.` The RATE of reaction becomes 0.25 times of initial rate.


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