Question

The reaction A + B follows first order kinetics. The time taken for 0.8 mole of A to produce 0.6 mole of B is 1 hour. What is the time taken for conversion of 0.9 mole of A to produce 0.675 mole of B ?

(a) 1 hour

(b) 0.5 hour

(c) 0.25 hour

(d) 2 hours

Answer 1

Correct option (a) 1 hour

Explanation :

The time taken for the completion of same fraction of change is independent of initial concentration.