1 mole of an ideal gas expands isothermally reversibly from 2 litre to 4 litre and 3 moles of the same gas expands from 2 litre to $x$ litre and doing same work, what is $x$?
- A$8^{1/3}$
- B$4^{2/3}$
- C$2$
- D$4$
✓ Correct answer: B
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