Under isothermal condition, a gas at expands from to against a constant external pressure of . The work done by the gas is [Given that ]

Question

Under isothermal condition, a gas at  expands from  to  against a constant external pressure of . The work done by the gas is [Given that ]

Canvas Classes · Accepted Answer

🧠 The "Work" Definition
In thermodynamics, work done by the gas during expansion is a "piston struggle" against external pressure. When the pressure is constant, the formula is straightforward, but the units are the examiner's favorite trap.

🗺️ The Standard Approach
1. The Formula: 
2. Identify Values:
   - 
   - 
3. Calculation (L\cdot bar):
   
4. Conversion to Joules:
   - Given: 
   -

The negative sign indicates work is done by the system (expansion).

⚡ The 30-Second Insight
. 
. 
Expa

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