Question

1. Mention the order of the following reactions :

• CH₃COOC₂H₅ + H₂O → CH₃COOH + C₂H₅OH
• C₁₂H₂₂O₁₁ + H₂O → C₆H₁₂O₆ + C₆H₁₂O₆

2. Unit of the rate constant of a reaction depends on the order of the reaction. If the concentration is expressed in mol/L and time in second. Find the unit of k for zero, first and second order reactions.

Answer 1

1. Order of the reactions :

• Pseudo 1^st order
• Pseudo 1^st order

 2. Zero order = L^-1mol¹s^-1

1^st order = s^-1 

2^nd order = L mol^-1s^-1