For reaction a A x P , when [A]=2.2 mM , the rate was found to be 2.4 mM s ⁻¹ . On reducing concentration of A to half, the rate changes to 0.6 mM s ⁻¹ . The order of reaction with respect to A is

Step-by-step solution

a A x P Rate of reaction =[A]^a Order of reaction =a[A]₁=2.2 mM , r₁=2.4 mM s ⁻¹[A]₂= 2.2 2 mM , r₂=0.6 or 2.4 4 mM s ⁻¹ On reducing the concentration of A to half, the rate of reaction is decreased by four times. Rate of reaction [A]^2 Order of reaction =2