Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEETChemistryThermodynamics (C)

Match List - I with List - II. ( array |l|l|l|l| & List - I & & List - II (a) & p _ ect =0 & (i) & Adiabatic change (b) & q = p _ ext ( v _ f - v ) & (ii) & free expansion of an ideal gas (c) & q =2.303 nRT ( v _ f v _ i ) & (iii) & isothermal irreversible change (d) & U = W & (iv) & isothermal reversible change array ) Choose the correct answer from the options given below:

Options

  1. A(a) - (ii), (b) - (iv), (c) - (iii), (d) - (i)
  2. B(a) - (ii), (b) - (iii), (c) - (iv), (d) - (i)
  3. C(a) - (iii), (b) - (iv), (c) - (i), (d) - (ii)
  4. D(a) - (i), (b) - (ii), (c) - (iii), (d) - (iv)

Correct answer

A. (a) - (ii), (b) - (iv), (c) - (iii), (d) - (i)

Step-by-step solution

(a) (p_ ext =0 ) : This indicates free expansion of an ideal gas, where no external pressure is exerted. (b) (q=p_ ext (v_f-v_i ) ) : This formula applies to an isothermal irreversible change, where work is done against the external pressure. (c) (q=2.303 n R T ( v_f v_i : . ) This represents the heat exchanged during an isothermal reversible change. (d) ( U=W ) : This corresponds to an adiabatic process where no heat is exchanged, and the change in internal energy equals the work done.

Practice Thermodynamics (C) on Quantrex Academy →

More from Thermodynamics (C)

A certain organic solvent has H _vap = 28.50 kJ mol ⁻¹ and S _vap = 88.2 J K ⁻¹ mol ⁻¹ at 1 bar. Calculate its normal boiling point (where G = 0 ). 2026Which of the following statements regarding spontaneous process is NOT true? 2026Calculate H for a reaction, 2X_ (g) + Y_ (g) 2Z_ (g) at 298 K if U = -10.5 kJ and R = 8.314 J K ⁻¹ mol ⁻¹ . 2026500 mL of nitrogen gas and 750 mL hydrogen gas were allowed to react at 1 bar pressure according to reaction, N _ 2(g) + 3 H _ 2(g) 2 NH _ 3(g) What is PV type of work done during 2026The relationship between H and U for the reaction, PCl ₃(g) + Cl ₂(g) PCl ₅(g) is given as 2026What would be the heat released in kJ when 450 cm ^3 of 0.02 M H ₂ SO ₄ is mixed with 650 cm ^3 of 0.1 M NaOH ? (Heat of neutralization of H ₂ SO ₄ and NaOH is -114 kJ/mol of H ₂ S 2026Identify from following reactions that it takes place with H = U . 2026Calculate the work done in the following reaction at 300 K , A (g) + B (g) = 2 C (g) [R = 8.314 JK ⁻¹ mol ⁻¹] 2026 Full Thermodynamics (C) list All NEET PYQs