Cooling is produced when a gas at high pressure suddenly expands. Why?

Explanation

To understand why cooling occurs when a gas at high pressure suddenly expands, we can break down the explanation into a series of logical steps:

### Step-by-Step Solution:

1. **Identify the Process**:
- The process described is a sudden expansion of a gas at high pressure. This is typically an adiabatic process, meaning that there is no heat exchange with the surroundings during the expansion.

2. **Understand Adiabatic Process**:
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