Q100 · CSIR-NET Chemistry, June 2014

Paper: CSIR-NET June 2014 · Subject: Physical Chemistry · Chapter: Thermodynamics · Topic: Thermodynamics – General · 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.

Study loop for Thermodynamics