a) If the concentration of A is increased to 4 times, how will it affect the formation of B?

Question

The conversion of molecule A to B follows second order kinetics.

a) If the concentration of A is increased to 4 times, how will it affect the formation of B?

b) Indicate the order and molecularityofthe reaction given below.

C₁₂H₂₂O₁₁+H₂O \(\overset{H}{\rightarrow}\) C₆H₁₂O₆+C₆H₁₂O₆

Answer 1

a) Rate r,= k[A]²

If the concentration of A is increased by four times, the new rate, r2 = k[4A]²

or r₂ = 16 k [A]²

or r₂ = 16 r₁

i.e., rate is increased by 16 times.

b) This is a pseudo first order reaction.

Order = 1, Molecularity = 2