A substance with initial concentration 'a' follows zero order kinetics. In how much time, will the reactions go to completion ?

Explanation

To solve the problem of determining the time required for a zero-order reaction to go to completion, we can follow these steps:

### Step 1: Understand Zero-Order Kinetics
For a zero-order reaction, the rate of reaction is constant and does not depend on the concentration of the reactant. The rate law can be expressed as:
\[ \frac{d[A]}{dt} = -k \]
where \( [A] \) is the concentration of the reactant, and \( k \) is the rate constant.

### Step 2: Set Up the Differential Equation
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