NEET Chemistry Chemical Kinetics Questions Solved

The concentration of reactant X decreases from 0.1 M to 0.005 M in 40 minutes. If the reaction follows first order kinetics, the rate of reaction when concentration of X is 0.01 M will be

1. 1.73 x 10-4 M min-1

2. 3.47 x 10-4 M min-1

3. 3.47 x 10-5 M min-1

4. 7.50 x 10-4 M min-1

(4) k = (2.303/40)log(0.1/0.005)

k = (2.303/40))x1.3

Rate = k[X] = (2.303/40))x1.3x0.01

= 7.5 x 10-4 M min-1

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