Question

Do Amides or Carboxylic Acid have higher boiling point?

Answer 1

A substance's boiling point is the temperature at which the vapour pressure of a liquid equals the pressure surrounding the liquid and the liquid transforms into a vapour. The boiling point of a liquid is affected by the surrounding atmospheric pressure.

Complete answer:
Let's begin by learning about amides and carboxylic acid before answering the question.
Amide: A chemical having the generic formula $RC\left( { = O} \right)NR\prime R\prime \prime$ , where $R$ , $R'$ , and $R\prime \prime$ represent organic groups or hydrogen atoms, is known as an amide, sometimes known as an organic amide or a carboxamide in organic chemistry.
Carboxylic acid: An organic acid with a carboxyl group connected to an R-group is known as a carboxylic acid. A carboxylic acid's general formula is $R - COOH$ or $RC{O_2}H$ , with $R$ referring to the alkyl, alkenyl, aryl, or other group.
Now, coming to the question;
The boiling point of amide is higher than that of carboxylic acid. Because amide has a higher hydrogen bonding capacity than carboxylic acid. Carboxylic acid contains one hydrogen bond donor atom and two hydrogen bond acceptor atoms, whereas amide contains two donor and two acceptor atoms. As a result, amide has a greater boiling and melting point than carboxylic acid.

Note:
Amides can be found in both nature and technology. Proteins and key plastics like Nylons, Aramid, Twaron, and Kevlar are polymers with amide groups (polyamides) connecting their units; these connections are easy to produce, provide structural rigidity, and resist hydrolysis. Many additional significant biological molecules, as well as medications such as paracetamol, penicillin, and LSD, are amides. Solvents with a low molecular weight, such as dimethylformamide, are commonly used.