On mixing 1 dm 3 of 3 M ethanol with 1 dm 3 of 2 M ethanoic acid, an ester is formed. C 2 H 5 OH + CH 3 COOH longrightarrow CH 3 COOC 2 H 5+ H 2 O If each solution is diluted with an equal volume of water, the decrease in the initial rate would be

Question

On mixing 1 dm 3 of 3 M ethanol with 1 dm 3 of 2 M ethanoic acid, an ester is formed. C 2 H 5 OH + CH 3 COOH longrightarrow CH 3 COOC 2 H 5+ H 2 O If each solution is diluted with an equal volume of water, the decrease in the initial rate would be (A) 0.5 times (B) 4 times (C) 0.25 times (D) 2 times

Tardigrade Admin · Accepted Answer

r=k[ CH 3 COOH ][ C 2 H 5 OH ] or r=k[(n/V)][(n/V)] Increasing volume (V) by twice (due to dilution) will reduce the rate by 4 times. i.e. r=0.25 k[ CH 3 COOH ][ C 2 H 5 OH ]

Q. On mixing $1 d m^{3}$ of $3 M$ ethanol with $1 d m^{3}$ of $2 M$ ethanoic acid, an ester is formed.
$C_{2} H_{5} O H + C H_{3} COO H ⟶ C H_{3} COO C_{2} H_{5} + H_{2} O$
If each solution is diluted with an equal volume of water, the decrease in the initial rate would be

$0.5$ times

$4$ times

$0.25$ times

$2$ times

$r = k [C H_{3} COO H] [C_{2} H_{5} O H]$
or $r = k [\frac{n}{V}] [\frac{n}{V}]$
Increasing volume $(V)$ by twice (due to dilution) will reduce the rate by $4$ times.
i.e. $r = 0.25 k [C H_{3} COO H] [C_{2} H_{5} O H]$

Q. On mixing 1dm3 of 3M ethanol with 1dm3 of 2M ethanoic acid, an ester is formed. C2​H5​OH+CH3​COOH⟶CH3​COOC2​H5​+H2​O If each solution is diluted with an equal volume of water, the decrease in the initial rate would be

0.5 times

4 times

0.25 times

2 times