A gas present at 5 atm pressure expands against one atmosphere when its volume changes from 3 litre to 5 litre. The work done by the gas in Joule will be ?

Explanation

To solve the problem of calculating the work done by the gas during its expansion, we can follow these steps:

### Step 1: Identify the given values
- Initial pressure of the gas, \( P_{\text{gas}} = 5 \, \text{atm} \)
- External pressure, \( P_{\text{ext}} = 1 \, \text{atm} \)
- Initial volume, \( V_1 = 3 \, \text{L} \)
- Final volume, \( V_2 = 5 \, \text{L} \)

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