JEE · NEET Previous Year Question
Match the LIST-I with LIST-II
Choose the correct answer from the options given below:
Topic: JEE PYQ
Answer: B. Full step-by-step solution below.
- AA-I, B-III, C-II, D-IV
- BA-II, B-I, C-III, D-IV
- CA-IV, B-I, C-III, D-II
- DA-IV, B-II, C-III, D-I
Correct answer: B
Solution
(b) Matching isothermal processes with work expressions:(A) Reversible expansion: In a reversible isothermal expansion from to (where ), the gas does work against external pressure equal to the surroundings. The work is , matching II.
(B) Free expansion: The gas expands into a vacuum with no external pressure opposition. No work is done: , matching I.
(C) Irreversible expansion: Isothermal expansion from to against constant external pressure . Work done is , matching III.
(D) Irreversible compression: Isothermal compression from to (where ) against constant external pressure. Work is , matching IV.
The correct pairings are A-II, B-I, C-III, D-IV.
More Thermodynamics PYQs
- Choose the correct option for free expansion of an ideal gas under adiabatic condition from the following:
- The species which by definition has ZERO standard molar enthalpy of formation at 298 K is :
- Given that …
- Which of the following statements is correct for the spontaneous adsorption of a gas?
- For the reaction (g) (g) + (g) U = -59.6 kJ at 27°C. The enthalpy change for the above…