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Friday, 9 October

NEET UG 2024 · Physics · Question 47

NEET 2024 Physics, question 47

Question 47 of the NEET 2024 paper (code T2) is a Physics question from Kinetic Theory. Its idea, Ideal Gas Equation, was asked 5 times, in 2020, 2022, 2024 and 2025, across NEET 2017–2026. The NTA final answer key gives option 2.

Updated 2026-10-08

Q47 · Physics

The following graph represents the T-V curves of an ideal gas (where T is the temperature and V the volume) at three pressures P1P_1, P2P_2 and P3P_3 compared with those of Charles's law represented as dotted lines.

Then the correct relation is:

The figure, described in words

T vs V graph: three curves labelled P1 (steepest), P2, P3 (least steep) with dotted straight Charles's-law lines.

  1. 1P2>P1>P3P_2 > P_1 > P_3
  2. 2P1>P2>P3P_1 > P_2 > P_3Official answer
  3. 3P3>P2>P1P_3 > P_2 > P_1
  4. 4P1>P3>P2P_1 > P_3 > P_2

Official answer: option 2 · NTA final answer key

Same idea

Ideal Gas Equation, in other papers

NEET asked this idea 5 times, in 2020, 2022, 2024 and 2025. The other 4 questions below.

  • 2025 Q14An oxygen cylinder of volume 30 litre has 18.20 moles of oxygen. After some oxygen is withdrawn from the cylinder, its gauge pressure…Numerical · Medium
  • 2025 Q29A container has two chambers of volumes V1V_1 = 2 litres and V2V_2 = 3 litres separated by a partition made of a thermal insulator. The…Numerical · Medium
  • 2022 Q44The volume occupied by the molecules contained in 4.5 kg water at STP, if the intermolecular forces vanish away is :Numerical · Medium
  • 2020 Q139A cylinder contains hydrogen gas at pressure of 249 kPa and temperature 27°C. Its density is : (R = 8.3 J mol−1^{-1} K−1^{-1})Numerical · Easy

Ideal Gas Equation: every question and how it was framed

The chapter

Kinetic Theory in ten years of NEET

14 questions from 2017–2026, asked in 10 of 10 papers, about 1.4 a paper. Kinetic Theory of Gases alone had 14.

Kinetic Theory: questions per paper

0241’171’181’193’201’211’221’231’242’252’26