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JEE Main 3 April 2025, Shift 2, Chemistry Q71

Question 71 of 75 in this shift, Chemistry question 21 of 25, Section B.

A perfect gas (0.1 mol) having

\overline{\mathrm{C}}_v = 1.50\mathrm{R}

(independent of temperature) undergoes the above transformation from point 1 to point 4. If each step is reversible, the total work done (w) while going from point 1 to point 4 is (-) __________ J (nearest integer) [Given: R = 0.082 L atm

\mathrm{K^{-1}\,mol^{-1}}

]

The figure, in words

P-V diagram (P/atm vs V/cm^3): point 1 at (1000 cm^3, 1.00 atm); vertical line up to point 2 at (1000, 3.00 atm); horizontal line to point 3 at (2000, 3.00 atm); vertical line down to point 4 at (2000, 1.00 atm). Arrows show direction 1->2->3->4.

Official answer

304

NTA final key.

Chapter: Thermodynamics (Chemistry)
Topic: No close match in our taxonomy
Idea tested: No close match in our taxonomy