In an esterification reaction, a carboxylic acid reacts with an excess of alcohol in acidic conditions to form an ester. draw the structure of the ester product in the reaction between pentanoic acid and 1‑propanol. be sure to show the nonbonding electrons on oxygen.

Explanation:

Esterification is a type of condensation reaction in which an acid  (carboxylic acid) reacts with an alcohol (hydroxyl group) and formation of esters take place with the removal of water.

The reaction of pentanoic acid with 1-propanol follows the mechanism of the esterification process. The ester formed is propyl pentanoate.

The structure is shown in the image below.

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.