For zero order reaction, a plot of t 1 / 2 versus [ A ] 0 will be

For zero order reaction, a plot of t1/2 versus [A]0 will be
  1. A straight line passing through the origin and slope =K
  2. A horizontal line (parallel to x - axis)
  3. A straight line with slope -K
  4. A straight line passing through origin and slope =12K

Solution

For zero order reaction :-

Rate = Kconc.0

[A]0 is the initial concentration and [A]t is the concentration after some time.

Over the half life, the concentration also becomes [A]02.

So, K=[A]0-[A]02t12=[A]02t12So, t12=[A]02k

Graph :-

Hence, the straight line passing through origin and slope =12K.

Asked in: AP EAMCET 2021 (20 Aug Shift 1)

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