Question

A reaction in which reactants (R) are converted into products (P) follows second order kinetics.If concentration of R is increased by four times, what will be the increase in the rate of formation of P?

(a) 9 times

(b) 4 times

(c) 16 times

(d) 8 times

Answer 1

Answer : (c) 16 times

Explanation :

For the reaction,

           Reactants(R) → Product(P)

It follows 2nd order kinetic.

For a second order reaction,

rate = k [R]²

If the concentration of reactant (R) is increased by four times,

rate = k [4R]² =16k [R]²

Hence, the rate of formation of P increases by 16 times.

c) 16 times