Jump to a section

Physics - Thermodynamics

Practise 268 NEET NTA questions on Thermodynamics. Each question shows a quick preview so you can jump straight to the topic you want to revise.

Thermodynamics has been asked in 0 of the 38 years of NEET NTA papers analysed (1988–2025), with 268 questions in all. 100% of them were easy, 0% moderate and 0% tough. Most of its questions came from 2025, with 0 questions that year. In the last three years (2023–2025) it had 0 questions across 6 papers, about 0 per paper.

All of the chapter's questions come from a single topic, Uncategorized.

  1. 1A Carnot engine takes 300 calories of heat from a source at 500 K and rejects 150 calories of heat to the sink. The temperature of the sink
  2. 2A cyclic process A B C A is shown in the V - T diagram. Process on the P - V diagram is
  3. 3Work done (in kJ ) by the gas in the following cyclic process is
  4. 4The coefficient of performance of a refrigerator is 5 . If the temperature inside freezer is - 20 o C , the temperature of the surrounding t
  5. 5Calculate the heat absorbed by a system in going through the cyclic process shown in diagram.
  6. 6A refrigerator absorbs 2000 c a l of heat from ice trays. If the coefficient of performance is 4 , then work done by the motor is
  7. 7A monoatomic gas γ = 5 3 is suddenly compressed to 1 8 of its volume adiabatically then the pressure of the gas will change to.... times of
  8. 8A Carnot engine has the same efficiency between (i) 100 K and 500 K , (ii) T K and 900 K . The value of T is
  9. 9An ideal gas is taken through a cyclic thermodynamical process through four steps. The amounts of heat involved in these steps are Q 1 = 596
  10. 10The coefficient of performance of a refrigerator working between 10 ° C and 20 ° C is
  11. 11A gas is present in a cylinder fitted with movable piston. Above and below the piston there is equal number of moles of gas. The volume abov
  12. 12The relation between efficiency η of a heat engine and the co-efficient of performance α of a refrigerator is
  13. 13The gas inside a spherical bubble expands uniformly and slowly so that its radius increases from R to 2 R . The atmospheric pressure is P 0
  14. 14V - T graph for a given mass of an ideal gas is shown in the figure. Then the corresponding P - V graph would be ( B C and D A are vertical
  15. 15A cyclic process A B C A shown in the V - T diagram is performed with a constant mass of an ideal gas. The same process in the P - V diagram
  16. 16Which of the following parameters does not characterize the thermodynamic state of matter?
  17. 17An ideal refrigerator has a freezer at a temperature of - 13 o C . The coefficient of performance of the engine is 5 . The temperature of th
  18. 18The percentage change in internal energy, when a gas is cooled from 927 ° C to 27 ° C , is
  19. 19Calculate the gas constant for 1 g of gas from the following data: C p = 0 . 245 cal g - 1 ° C - 1 ; C v = 0 . 165 cal g - 1 ° C - 1 and J =
  20. 2022 g of C O 2 at 27 ° C is mixed with 16 g of O 2 at 37 ° C . If both gases are considered as ideal then the temperature of the mixture is (
  21. 21In a Carnot engine, when T 2 = 0 ℃ and T 1 = 200 ℃ , its efficiency is η 1 and when T 1 = 0 ℃ and T 2 = - 200 ℃ its efficiency is η 2 , then
  22. 22The pressure P , volume V and temperature T of a certain material are related by the equation P = α T 2 / V . The work done by the material
  23. 23An ideal gas is expanding such that P T 2 = constant. The coefficient of volume expansion of the gas is
  24. 24An ideal gas is taken around the cycle ABCA as shown in the P - V diagram. The total work done by the gas during the cycle is
  25. 25A thermodynamic system is taken through the cycle ABCD as shown in the figure. Heat rejected by the gas during the cycle is
  26. 26One mole of an ideal monoatomic gas at temperature T 0 expands slowly according to the law P V = constant. If the final temperature is 2 T 0
  27. 27An ideal gas heat engine operates in a Carnot cycle between 227 ° C and 127 ° C . It absorbs 6 kcal of heat at a higher temperature. The amo
  28. 28One mole of an ideal monatomic gas undergoes a process described by the equation P V 3 = constant. The heat capacity of the gas during this
  29. 29An ideal gas is taken through a series of changes, from P 1 , V 1 → 4 P 1 , V 1 → P 1 , 3 V 1 represented in the figure. The net work done b
  30. 30When 2 moles of O 2 and 1 mole of He are mixed together, then the ratio of C p / C v for the mixture is
  31. 31A cyclic process is shown on the V - T diagram. The same process on a P - T diagram is shown by
  32. 32The relation between internal energy U , pressure P and volume V of gas in an adiabatic process is U = a + bPV , where a and b are constants
  33. 33In a refrigerator, the low temperature coil of evaporator is at - 23 ℃ and the compressed gas in the condenser has a temperature of 77 ℃ . T
  34. 3470 calories of heat is required to raise the temperature of 2 moles of an ideal diatomic gas at constant pressure from 30 ° C to 35 ° C . Th
  35. 35P - V graph for a cyclic process is shown in figure. Work done is given by
  36. 36Shown in the figure are three P - V diagrams.The case in which the work done is minimum
  37. 37A flask is filled with 13 g of an ideal gas at 27 ° C and its temperature is raised to 52 ° C . The mass of the gas that has to be released
  38. 38The P - V diagram of a system undergoing thermodynamic transformation is shown in figure. The work done on the system in going from A → B →
  39. 39In Carnot engine, efficiency is 40 % at hot reservoir temperature T. For efficiency 50 % , what will be the temperature of hot reservoir?
  40. 40Pressure versus temperature graphs of an ideal gas are as shown in figure. Choose the wrong statement
  41. 41In the thermodynamical process, the pressure of a fixed mass of gas is changed in such a manner that the gas releases 20 J of heat and 8 J o
  42. 42In the figure shown below, an ideal gas is carried around the cyclic process. How much work is done in one cycle if P 0 = 8 a t m and V 0 =
  43. 43An inverted bell, lying at the bottom of lake 47 . 6 m deep, has 50 cm 3 of air trapped in it. The bell is brought to the surface of the lak
  44. 44In each heartbeat, a heart pumps 80 mL of blood at an average pressure of 100 mm of Hg . What will the power output of the heart? (Assume 60
  45. 45Two vessels separately contain two ideal gases A and B at the same temperature, the pressure of A being twice that of B . Under such conditi
  46. 46A vessel is filled with an ideal gas at a pressure of 10 atm and temperature 27 ° C . Half of the mass is removed from the vessel and temper
  47. 47One mole of an ideal monoatomic gas γ = 5 3 is mixed with one mole of diatomic gas γ = 7 5 . The value of γ for the mixture is (where, γ rep
  48. 48For the free expansion of an ideal gas under adiabatic conditions, which of the following is true?
  49. 49A thermodynamical system undergoes cyclic process ABCDA as shown in the figure. Work done by the system is
  50. 50C v and C p denote the molar specific heat capacities of a gas at constant volume and constant pressure, respectively. Then

Frequently Asked Questions

1.How many questions are available for Thermodynamics?

This chapter includes 268 NEET NTA questions.

2.Are these questions only from NEET NTA, or from other exams too?

These are NEET NTA questions specifically for the Thermodynamics chapter. Questions from other exams like NEET or AIIMS are organised separately under their respective exam sections.

3.What is the difficulty level of Thermodynamics questions in NEET NTA?

Of the 268 questions analysed for this chapter, 100% are easy, 0% moderate and 0% tough. 2025 had the most, with 0 questions.

4.Which topics in Thermodynamics should I focus on?

All of this chapter's questions come from a single topic: Uncategorized.