the reaction between carboxylic acid and alcohol in the presence of concentrated sulphuric acid to form a sweet odoured substance,ester with the functional group is called esterification.
the esterification reaction is slow and reversible.
the equation for the reaction between an acid RCOOH and an alcohol R'OH.
soap is a sodium or potassium salt of a higher fatty acid like palmitic acid.
the formula of soap is RCOONa.
fats are esters of higher fatty acids and the trihydroxy alcohol known as glycerol.
the sodium salts of that's salts higher fatty acids being soaps the reaction is the soap formation reaction which is generally called as saponificafion.