The temperature used is `450^(@)C` . Explain why ?
(A) A lower temperature is not used .
(B) A high temperature is not used .

Explanation

To answer the question regarding why a temperature of 450°C is used in the Haber process for the production of ammonia, we can break it down into two parts: explaining why a lower temperature is not used and why a higher temperature is not used.

### Step-by-Step Solution:

1. **Understanding the Haber Process**:
- The Haber process is an industrial method for synthesizing ammonia (NH₃) from nitrogen (N₂) and hydrogen (H₂) gases. The reaction can be represented as:
\[
N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g) + \text{heat}
...