Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Thermodynamics question

2025 · 28 Jan · Shift 2 · Q7
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Chemistry
  4. /Thermodynamics
  5. /2025 · 28 Jan · Shift 2 · Q7

Thermodynamics question

2025 · 28 Jan · Shift 2 · Q7

JEE MainChemistryThermodynamicsMCQ+4 / −1
JEE Main 2025 (Online) 28th January Evening Shift Chemistry - Thermodynamics Question 28 EnglishAn ideal gas undergoes a cyclic transformation starting from the point A and coming back to the same point by tracing the path A→B→C→D→A as shown in the three cases above. Choose the correct option regarding ΔU :
  1. A
    ΔU( Case-III )>ΔU( Case-II )>ΔU( Case-I )\Delta \mathrm{U}(\text { Case-III })\gt \Delta \mathrm{U}(\text { Case-II })\gt \Delta \mathrm{U}(\text { Case-I })ΔU( Case-III )>ΔU( Case-II )>ΔU( Case-I )
  2. B
    ΔU(\Delta \mathrm{U}(ΔU( Case-I )>ΔU()\gt \Delta \mathrm{U}()>ΔU( Case-II )>ΔU()\gt \Delta \mathrm{U}()>ΔU( Case-III )))
  3. C
    ΔU(\Delta \mathrm{U}(ΔU( Case-I )=ΔU()=\Delta \mathrm{U}()=ΔU( Case-II )=ΔU()=\Delta \mathrm{U}()=ΔU( Case-III )))
  4. D
    ΔU(\Delta \mathrm{U}(ΔU( Case-I )>ΔU()\gt \Delta \mathrm{U}()>ΔU( Case-III )>ΔU()\gt \Delta \mathrm{U}()>ΔU( Case-II )))
PreviousNext

More from Thermodynamics

  • 500 J of energy is transferred as heat to 0.5 mol of Argon gas at 298 K and 1.00 atm. The final temperature and the change in internal energy respectively are: Given: R = 8.3 J K-1 mol-12025 · MCQ
  • If C(diamond )→C(graphite) +X kJ mol−1 C (diamond) +O2​( g)→CO2​( g)+YkJmol−1 C (graphite) +O2​( g)→CO2​( g)+ZkJmol−1…2025 · MCQ
  • Choose the correct option for free expansion of an ideal gas under adiabatic condition from the following :2024 · MCQ
  • For a certain reaction at 300 K, K=10, then ΔG∘ for the same reaction is - ​×10−1 kJ mol−1. (Given R=8.314JK−1 mol−1…2024 · Numerical
  • The enthalpy of formation of ethane (C2​H6​) from ethylene by addition of hydrogen where the bond-energies of C−H,C−C,C=C,H−H are 414 kJ,347 kJ,615 kJ…2024 · Numerical
  • Three moles of an ideal gas are compressed isothermally from 60 L to 20 L using constant pressure of 5 atm. Heat exchange Q for the compression is - ​ Lit. atm.2024 · Numerical
  • The heat of combustion of solid benzoic acid at constant volume is −321.30 kJ at 27∘C. The heat of combustion at constant pressure is (−321.30−xR) kJ, the value of x is ​…2024 · Numerical
  • Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R) Assertion (A) : Enthalpy of neutralisation of strong monobasic acid with strong monoacidic base is always −57 kJ mol−1…2024 · MCQ