Explain application of Charle’s Law for the case of Hot Air Balloons.

Explanation

### Step-by-Step Solution

**Step 1: Understanding Charles's Law**
- Charles's Law states that the volume (V) of a gas is directly proportional to its absolute temperature (T) when the pressure (P) and the amount of gas (n) are held constant. This can be expressed mathematically as:
\[ V \propto T \quad \text{or} \quad \frac{V}{T} = K \]
where K is a constant.
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