Why do we add 273 to the temperature while dealing with problems on gas equation?

Explanation

To understand why we add 273 to the temperature while dealing with gas equations, we can follow these steps:

### Step 1: Understanding Temperature Scales
- Temperature can be measured in different scales, primarily Celsius (°C) and Kelvin (K).
- The Kelvin scale is an absolute temperature scale, meaning it starts at absolute zero, the point where all molecular motion stops.

### Step 2: Absolute Zero
- Absolute zero is defined as 0 K, which corresponds to -273.15 °C. This is the lowest possible temperature.
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