High pressure and low temperature are favourable conditions for the synthesis of ammonia.

Explanation

To determine whether the statement "High pressure and low temperature are favorable conditions for the synthesis of ammonia" is correct or false, we can analyze the synthesis reaction of ammonia and apply Le Chatelier's principle.

### Step-by-Step Solution:

1. **Write the Reaction**:
The synthesis of ammonia can be represented by the following balanced chemical equation:
\[
N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g) + \text{heat}
...