Question

The reaction; 2A + B + C ----> D + 2E: is found to be I order in A, II order in B and zero order in C.

(a) Write the rate expression.

(b) What is the effect on rate on increasing the conc. of A, B and C two times?

Answer 1

(a) Rate = K[A]¹ [B]² [C]⁰

(b) Let initial conc. of A, B and C be a, b, and c mol litre^-1 respectively 

Then, Rate r₁ = K a¹ b² c⁰   .....(1)

Now if conc. of^, B and C are doubled, i.e. 2a, 2b and 2c respectively, then,