Acyl chlorides and acid anhydrides model answers

Question 1

Advantage of acyl chloride over acid anhydride in esterification

Answer 1

Faster,
Not reversible
Bigger yield
Purer product
No catalyst

Question 2

Advantage of acid anhydride over acyl chloride in esterification

Answer 2

Anhydride less easily hydrolysed
Reaction less violent/exothermic/reaction more easily controlled
No corrosive HCl fumes formed
Safer/less toxic/dangerous
Anhydride cheaper

Question 3

The enthalpy change for this reaction is quite small, with reference to types and numbers of bonds broken and made, explain why this may have been predicted.

Answer 3

similar types of bond broken and made

Same number of the bonds broken and made