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Under isothermal condition, a gas at 300 K expands from 0.1 L to 0.25 L against a constant external pressure of 2 bar. The work done by the gas is
(Given that 1 L bar = 100 J)
  • a)
    –30 J
  • b)
    5 kJ
  • c)
    25 J
  • d)
    30 J
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Under isothermal condition, a gas at 300 K expands from 0.1 L to 0.25 ...
∴ Wirr = – Pext ΔV
= – 2 bar × (0.25 – 0.1) L
= – 2 × 0.15 L-bar
= – 0.30 L-bar
= – 0.30 × 100 J
= – 30 J
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Under isothermal condition, a gas at 300 K expands from 0.1 L to 0.25 L against a constant external pressure of 2 bar. The work done by the gas is(Given that 1 L bar = 100 J)a)–30 Jb)5 kJc)25 Jd)30 JCorrect answer is option 'A'. Can you explain this answer?
Question Description
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