The correct difference between first and second order reactions is that
(1)A first-order reaction can catalyzed; a second-order reaction cannot be catalyzed
(2)The half-life of a first-order reaction does not depend on ; the half-life of a second-order reaction does depend on Correct
(3)The rate of a first-order reaction does not depend on reactant concentrations; the rate of a second-order reaction does depend on reactant concentrations
(4)The rate of a first-order reaction does depend on reactant concentrations; the rate of a second-order reaction does not depend on reactant concentrations
Answer: (2)
Solution
For a first-order reaction , independent of the initial concentration . For a second-order reaction , which depends on . So option (2) is correct.
Option (1) is
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.