The figure below represents the path followed by a gas during expansion from A → B. The work done is (L atm) · ABC26PH1469

Subject: Physical Chemistry · Chapter: Thermodynamics · Topic: Thermodynamics – General · Exam: CSIR NET JUNE 2014 · Marks: 2 · Difficulty: Medium

The figure below represents the path followed by a gas during expansion from $\mathrm{A} \rightarrow \mathrm{B}$. The work done is (L atm)
(a)0
(b)9
(c)5
(d)4
Answer
Answer: D ✓ checked by 4AB · confidence high
Explanation
Constant-volume drop from 5 to 1 atm does no work; the expansion at 1 atm from 1 to 5 L gives w = pΔV = 4 L atm.

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