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Saturday, 31 October

JEE Main 2022 · PhysicsMultiple choiceTwo statementsMediumConceptual

JEE Main 28 June 2022, Shift 1, Physics Q37

Question 37 of 90 in this shift, Physics question 7 of 30, Section A.

Given below are two statements : Statement – I : When μ\mu amount of an ideal gas undergoes adiabatic change from state (P1,V1,T1)(\mathrm{P_1, V_1, T_1}) to state (P2,V2,T2)(\mathrm{P_2, V_2, T_2}), then work done is W=μR (T2−T1)1−γ\mathrm{W} = \frac{\mu \mathrm{R}\,(\mathrm{T_2 - T_1})}{1-\gamma}, where γ=CPCV\gamma = \frac{\mathrm{C_P}}{\mathrm{C_V}} and R = universal gas constant. Statement – II : In the above case, when work is done on the gas, the temperature of the gas would rise. Choose the correct answer from the options given below:
  1. (1)Both statement-I and statement-II are true.Official answer
  2. (2)Both statement-I and statement-II are false.
  3. (3)Statement-I is true but statement-II is false.
  4. (4)Statement-I is false but statement-II is true.

Official answer

Option 1

NTA final key.

Chapter
Thermodynamics
Topic
Thermodynamic Processes
Idea tested
Adiabatic Process Analysis

Same idea in other shifts

Asked 16× in all
  1. 6 Apr 2026, Shift 2 · Q30A cylinder with adiabatic walls is closed at both ends and is divided into two compartments by a frictionless adiabatic piston. Ideal gas…HardSingle correct
  2. 2 Apr 2025, Shift 1 · Q31In an adiabatic process, which of the following statements is true ?EasySingle correct
  3. 2 Apr 2025, Shift 2 · Q32Identify the characteristics of an adiabatic process in a monoatomic gas. (A) Internal energy is constant. (B) Work done in the process is…MediumOther
  4. 8 Apr 2025, Shift 2 · Q33A monoatomic gas having γ=53\gamma = \frac{5}{3} is stored in a thermally insulated container and the gas is suddenly compressed to…EasySingle correct
  5. 4 Apr 2024, Shift 2 · Q39A sample of gas at temperature TT is adiabatically expanded to double its volume. Adiabatic constant for the gas is γ=3/2\gamma = 3/2. The…MediumSingle correct
  6. 9 Apr 2024, Shift 1 · Q38A sample of 11 mole gas at temperature T is adiabatically expanded to double its volume. If adiabatic constant for the gas is…MediumSingle correct
  7. 9 Apr 2024, Shift 1 · Q39The volume of an ideal gas (γ=1.5\gamma=1.5) is changed adiabatically from 55 litres to 44 litres. The ratio of initial pressure to final…EasySingle correct
  8. 10 Apr 2023, Shift 1 · Q33Consider two containers A and B containing monoatomic gases at the same Pressure (P), Volume (V) and Temperature (T). The gas in A is…MediumSingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.