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Consider the reversible isothermal expansion of an ideal gas in a closed system at two different temperatures T 1 and T 2 (T 1 < T 2 ). The correct graphical depiction of the dependence of work done (W) on the final volume (V) is -

1. |W| T 2 T 1 A n V O
2. |W| T 2 T 1 A n V O
3. |W| T 2 T 1 A n V O
4. |W| T 2 T 1 A n V O

Correct answer: |W| T 2 T 1 A n V O

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