Consider a
general chemical reaction its follow zero order kinetics

**[A]**=initial concentration of reactant A

_{0}**[A]**= concentration of after time t

_{t}**[B]**= concentration of product B after time t

_{t}
On
Integration of above equation:

On rearrangement
equation (1) give equation of straight line

Note: Concentration
of reactant after regular interval of time will constitute an arithmetical
progression (AP)

Similarly
concentration of product B after time t

**Unit of rate constant:**K= Mol/litre second

**Half life period:**Time required converting half of the reactant to product i.e. life of zero order reaction may give as

**Imp note:**In zero order reaction average rate of reaction is equal to instantaneous rate of reaction

**100% completion of time:**It is time in which reactant completely converted into product.

**ILLUSTRATIVE EXAMPLE (1):**The graph show decomposition of Ammonia on

**Pt**surface it initial concentration of ammonia is 0.1 M then calculate the time required for the 40% completion of reaction.

**SOLUTION:**

**ILLUSTRATIVE EXAMPLE (2):**A certain zero order reaction has k=0.025 M /S for disappearance of A what will be the concentration of A after 15 second if initial concentration is 0.5 M?

**SOLUTION:**concentration of

**A**after time of t is [A]

_{t}

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