Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main202227 Jun 2022Morning ShiftChemistryThermodynamics (C)Actual

Match List - I with List - II. List-I List-II A Spontaneous process I ΔH < 0 B Process with ΔP = 0 , ΔT = 0 II ΔG T , P < 0 C ΔH reaction III Isothermal and isobaric process D Exothermic Process IV [Bond energies of molecules in reactants] - [Bond energies of product molecules] Choose the correct answer from the options given below

Options

  1. AA - III , B - II , C - IV , D - I
  2. BA - II , B - III , C - IV , D - I
  3. CA - II , B - III , C - I , D - IV
  4. DA - II , B - I , C - III , D - IV

Correct answer

B. A - II , B - III , C - IV , D - I

Step-by-step solution

(A) For a spontaneous process ΔG T , P < 0 (B) ΔP = 0 → Isobaric process(pressure is constant in this process) ΔT = 0 → Isothermal process(Temperature is constant in this process). (C) ΔH reaction = ( Σ Bond energies of reactants)- ( Σ bond energies of products) (D) ΔH < 0 is for exothermic reaction

Practice Thermodynamics (C) on Quantrex Academy →

More from Thermodynamics (C)

An ideal gas ( 0.5 mol), initially at 2 bar pressure, is compressed at a constant temperature of 600 K in two steps: first, against a constant external pressure of P bar ( 2 < P < 2026List-I contains various physical/chemical processes, and List-II contains combinations of changes in enthalpy ( H ) and entropy ( S ). Match each entry in List-I to the appropriate 2026Consider the reaction 2 H ₂ S (g) + 3 O ₂(g) 2 H ₂ O (l) + 2 SO ₂(g) The magnitude of enthalpy change for the reaction in kJ mol ⁻¹ is ________. (Nearest integer) Given: _fH^ ( H ₂ 2026Match List - I with List - II. Given V₁ and V₂ are initial and final volumes respectively. List - I (Isothermal process) List - II (Expression) A. Reversible expansion I. q = 0 B. 2026Arrange 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 w_A B. Expansion in multi 2026Consider the reaction X Y at 300 K. If H^ and K are 28.40 kJ mol ⁻¹ and 1.8 10⁻⁷ at the same temperature, then the magnitude of S^ for the reaction in J K ⁻¹ mol ⁻¹ is _______. (Ne 2026Consider the following data for the reaction X₂(g) + Y₂(g) 2XY(g) at 600 K . The _r G^ (in kJ mol ⁻¹ ) for the reaction is : Compound _f H^ _ 600K (kJ mol ⁻¹ ) S^ _ 600K (J mol ⁻¹ 2026The correct order of molar heat capacities measured at 298 K and 1 bar is : 2026 Full Thermodynamics (C) list All JEE Main PYQs