Calculate the entropy change when 1mole of an ideal gas expands reversibly form an initial volume of `2 L` to a final voluume of `20L` at `25^(@)C`.

Explanation

To calculate the entropy change (ΔS) when 1 mole of an ideal gas expands reversibly from an initial volume of 2 L to a final volume of 20 L at a temperature of 25°C, we can follow these steps:

### Step 1: Identify the given values
- Number of moles (n) = 1 mole
- Initial volume (V1) = 2 L
- Final volume (V2) = 20 L
- Temperature (T) = 25°C = 25 + 273.15 = 298.15 K (convert to Kelvin)

...