Question

The rate r, of a zero order chemical reaction A➡B can be expressed as which of the following? a) r= k In[A]. b) r= k[A]². c) r= k[A]. d) r= k[A]^1/2. e) r=k​

Answer 1

Explanation:

a) For a reaction A+B→P, the rate is given by

Rate=k[A][B]

2

(i) How is the rate of reaction affected if the concentration of B is doubled ?

(ii) What is the overall order of reaction if A is present in large excess?

(b) A first order reaction takes 30 minutes for 50% completion. Calculate the time required for 90% completion of this reaction?

(log 2=0.3010)