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Friday, 9 October

JEE Main 2026 · ChemistryMultiple choiceSingle correctMediumConceptual

JEE Main 6 April 2026, Shift 1, Chemistry Q55

Question 55 of 75 in this shift, Chemistry question 5 of 25, Section A.

Arrange the following isothermal processes in order of the magnitude of the work (p −- V) involved between states 1 and 2. A. Expansion in single stage wAw_A B. Expansion in multi stages wBw_B C. Compression in single stage wCw_C D. Compression in multi stages wDw_D Choose the correct option.
  1. (1)∣wB∣>∣wA∣>∣wC∣>∣wD∣|w_B|>|w_A|>|w_C|>|w_D|
  2. (2)∣wC∣>∣wD∣>∣wA∣>∣wB∣|w_C|>|w_D|>|w_A|>|w_B|
  3. (3)∣wC∣>∣wD∣>∣wB∣>∣wA∣|w_C|>|w_D|>|w_B|>|w_A|Official answer
  4. (4)∣wB∣>∣wA∣>∣wD∣>∣wC∣|w_B|>|w_A|>|w_D|>|w_C|

Official answer

Option 3

NTA final key.

Chapter
Thermodynamics (Chemistry)
Topic
Thermodynamic Processes
Idea tested
Work Comparison in Gas Compressions

Same topic in other shifts

All Thermodynamic Processes questions
  1. 2 Apr 2026, Shift 1 · Q33Heat is supplied to a diatomic gas at constant pressure. Then the ratio of ΔQ:ΔU:ΔW\Delta Q : \Delta U : \Delta W is ______.EasySingle correct
  2. 6 Apr 2026, Shift 2 · Q30A cylinder with adiabatic walls is closed at both ends and is divided into two compartments by a frictionless adiabatic piston. Ideal gas…HardSingle correct
  3. 2 Apr 2025, Shift 1 · Q31In an adiabatic process, which of the following statements is true ?EasySingle correct
  4. 2 Apr 2025, Shift 2 · Q32Identify the characteristics of an adiabatic process in a monoatomic gas. (A) Internal energy is constant. (B) Work done in the process is…MediumOther
  5. 3 Apr 2025, Shift 2 · Q33An ideal gas exists in a state with pressure P0\mathrm{P_0}, volume V0\mathrm{V_0}. It is isothermally expanded to 4 times of its initial…MediumSingle correct
  6. 4 Apr 2025, Shift 2 · Q33Match List - I with List - II. List - I List - II (A) Isobaric (I) ΔQ=ΔW\Delta Q=\Delta W (B) Isochoric (II) ΔQ=ΔU\Delta Q=\Delta U (C)…EasyMatch the list

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.