Write the equation for a pseudo first order reaction. Write the rate law and the rate constant.
(N/A) pseudo first order reaction can be represented by the hydrolysis of an ester (e.g.,ethyl acetate) in the presence of an excess of water:
$CH_3COOC_2H_5 + H_2O \xrightarrow{H^+} CH_3COOH + C_2H_5OH$
Rate law:
$Rate = k[CH_3COOC_2H_5][H_2O]$
Since water is in large excess,its concentration remains practically constant throughout the reaction. Thus,we define $k' = k[H_2O]$,leading to:
$Rate = k'[CH_3COOC_2H_5]$
Where $k'$ is the pseudo first order rate constant.
$CH_3COOC_2H_5 + H_2O \xrightarrow{H^+} CH_3COOH + C_2H_5OH$
Rate law:
$Rate = k[CH_3COOC_2H_5][H_2O]$
Since water is in large excess,its concentration remains practically constant throughout the reaction. Thus,we define $k' = k[H_2O]$,leading to:
$Rate = k'[CH_3COOC_2H_5]$
Where $k'$ is the pseudo first order rate constant.
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