Question

Explain pseudo first order reaction with suitable example.​

Answer 1

Answer:

A Pseudo first-order reaction can be defined as a second-order or bimolecular reaction that is made to behave like a first-order reaction. This reaction occurs when one reacting material is present in great excess or is maintained at a constant concentration compared with the other substance.

Answer 2

Answer:

• A Pseudo first-order reaction can be defined as a second-order or bimolecular reaction that is made to behave like a first-order reaction. This reaction occurs when one reacting material is present in great excess or is maintained at a constant concentration compared with the other substance.
• Consider the hydrolysis of ethyl acetate, during the hydrolysis, the concentration of ethyl acetate is 0.02 mol/L whereas the amount of water is 20 mol/L as the process of hydrolysis involves a large amount of water. Let us say, the process of hydrolysis attains completion in time t.
• The reaction can be represented as
• CH3COOC2H5 + H2O —–> CH3COOH + C2H5OH
• (ethyl acetate) (Water) (Acetic acid) (ethyl alcohol)