For 2 mole of He gas (assuming ideal behaviour), study P – V curve. [A P-V diagram is shown with poi — AITS & Test Series Chemistry Question
Question
For 2 mole of He gas (assuming ideal behaviour), study P – V curve. [A P-V diagram is shown with points A(3 lit, 5 atm), B(6 lit, 5 atm), C(6 lit, 2 atm), and D(3 lit, 2 atm), forming a rectangular cycle with arrows indicating the direction A→B→C→D→A.] For the given system

💡 Solution & Explanation
(i) Process AB V increases, T increase T > 0, U > 0 (ii) Process BC V decreases, T decrease T < 0. (iii) Process CD → pressure decreases, T decreases T < 0, Q < 0. (iv) Process DA pressure increase, Q > 0. AITS-FT-X (Paper-2)-PCM(Sol.)-JEE(Advanced)/20 Ltd., FIITJEE House, 29-A, Kalu Sarai, Sarvapriya Vihar, New Delhi -110016, Ph 46106000, 26569493, Fax 26513942 website: www.fiitjee.com 9