aakash ft 1

The ratio of half life and two third life (t2/3) for a second order kinetics is

1. 3 : 4

2. 2 : 3

3. 3 : 2

4. 1 : 2

ans - 4

I want explanation

2 Answers

For a second order reaction,

dA/dt = - k A²

This implies

-dA/A²=k dt

Integrating, we get

1/A-1/A_f=k t

1/A-1/(A/2) = k t_1/2
-1/A = k t_1/2

1/A-1/(2A/3) = k t_1/2
-1/2A = k t_2/3

From which you get option 4

" 1/A-1/(2A/3) = k t1/2 " ---> Sir here u mean t 2/3 ??

If yes then ya I got ur method

THANKS

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