Question

Consider a reaction A® B + C. If the initial concentration of A was reduced from 2M to 1 M in 1 hour and from 1 M to 0.25 M in 2 hours, the order of the reaction is :

• A. 1
• B. 0
• C. 2
• D. 3

Answer 1

Answer: (A)

1

Answer 2

Half life of the given reaction is independent of initial concentration, hence, it is first order reaction.

t_1/2 µ $\frac{1}{a^{n - 1}}$