For a reaction , `2A+D rarr3C`, the rate of appearance of C at time t is `1.2 xx10^(-4) "mol L"^(-1) s^(-1)` . Find the rate of reaction.

Explanation

To find the rate of reaction for the given chemical equation \(2A + D \rightarrow 3C\), we start with the information provided about the rate of appearance of product C.

### Step-by-step Solution:

1. **Identify the Rate of Appearance of C**:
The rate of appearance of C is given as:
\[
\text{Rate of appearance of C} = 1.2 \times 10^{-4} \, \text{mol L}^{-1} \text{s}^{-1}
...