Esterification reaction:
When ethanoic acid (\(\text{CH}_3\text{COOH}\)) reacts with ethanol (\(\text{C}_2\text{H}_5\text{OH}\)) in the presence of concentrated sulphuric acid, ethyl ethanoate (an ester) and water are formed. This reaction is called esterification.
Chemical equation:
\[ \text{CH}_3\text{COOH} + \text{C}_2\text{H}_5\text{OH} \xrightarrow{\text{conc.}\, \text{H}_2\text{SO}_4} \text{CH}_3\text{COOC}_2\text{H}_5 + \text{H}_2\text{O} \]