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Physics - Kinetic Theory of Gases

Practise 18 BITSAT previous year questions on Kinetic Theory of Gases, compiled from papers spanning 2010 to 2024. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty BITSAT tests.

Kinetic Theory of Gases has been asked in 13 of the 16 years of BITSAT papers analysed (2009–2024), with 18 questions in all. 50% of them were easy, 44% moderate and 6% tough. Most of its questions came from 2024, with 3 questions that year. In the last three years (2022–2024) it had 7 questions across 6 papers, about 1.2 per paper.

The chapter's 4 topics are not weighted equally: Speed of Gas (9 questions, 50%), Gas Laws (4 questions, 22%), and Pressure and Energy of gas (3 questions, 17%) have been asked the most. Speed of Gas has also led over the last five years, with 5 questions. Degree of Freedom and Specific Heat has produced the most tough questions (1).

  1. 1Two vessels and are of the same size and are at same temperature. A contains 1 g of hydrogen and contains 1 g of oxygen. and are the pressur2024 (Memory Based Paper 1)Gas Laws
  2. 2The temperature of an ideal gas is increased from 200 K to 800 K . If r.m.s. speed of gas at 200 K is . Then, r.m.s. speed of the gas at 8002024 (Memory Based Paper 2)Speed of Gas
  3. 3In a mixture of gases, the average number of degree of freedoms per molecule is 6 . The rms speed of the molecule of the gas is , then the v2024 (Memory Based Paper 3)Speed of Gas
  4. 4A bicycle tyre is filled with air having pressure of at . The approximate pressure of the air in the tyre when the temperature increases to 2023 (Memory Based Paper 1)Gas Laws
  5. 5A flask contains hydrogen and oxygen in the ratio of by mass at temperature . The ratio of average kinetic energy per molecule of hydrogen a2023 (Memory Based Paper 2)Pressure and Energy of gas
  6. 6A monoatomic gas of molar mass is kept in a insulated container. Container is moving with velocity . If the container is suddenly stopped, t2022Speed of Gas
  7. 7One mole of an ideal diatomic gas undergoes a process as shown in the figure. The molar specific heat of the gas in the process is2022Gas Laws
  8. 8The temperature of an ideal gas is increased from to . If at , the root mean square velocity of the gas molecules is , at it becomes2021Speed of Gas
  9. 9Ther.m.s. velocity of oxygen molecule at is . The r.m.s. velocity in of hydrogen molecule at is2020Speed of Gas
  10. 10A gas has molar heat capacity C = 37 . 55 J mol - 1 K - 1 , in this process p T = constant. The number of degree of freedom of the molecule 2018Degree of Freedom and Specific Heat
  11. 11A balloon is filled at 27 C and 1 atm pressure by 500 m 3 He . At - 3 C and 0 . 5 atm pressure, the volume of He will be2017Gas Laws
  12. 12The molecules of a given mass of a gas have r.m.s. velocity of at and pressure. When the temperature and pressure of the gas are respectivel2016Speed of Gas
  13. 13In the kinetic theory of gases, which of these statements is/are true? (i) The pressure of a gas is proportional to the mean speed of the mo2014Speed of Gas
  14. 14The temperature of an ideal gas is increased from to , then percentage increase in is2013Speed of Gas
  15. 15The average translational kinetic energy of (molar mass 32) molecules at a particular temperature is . The translational kinetic energy of (2012Pressure and Energy of gas
  16. 16For a gas if ratio of specific heats at constant pressure and volume is then value of degrees of freedom is2012Degree of Freedom and Specific Heat
  17. 17The molecules of a given mass of gas have a root mean square velocity of at and pressure. When the temperature is and the pressure the root 2011Speed of Gas
  18. 183 moles of an ideal gas at a temperature of are mixed with 2 moles of an ideal gas at a temperature , determine the equilibrium temperature 2010Pressure and Energy of gas

Frequently Asked Questions

1.How many questions are available for Kinetic Theory of Gases?

This chapter includes 18 questions compiled from BITSAT papers spanning 2010 to 2024.

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

These are BITSAT questions specifically for the Kinetic Theory of Gases chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Kinetic Theory of Gases an important chapter for BITSAT Physics?

Kinetic Theory of Gases has appeared in 13 of the 16 years of BITSAT papers covered here, with 18 questions across 16 papers - about one per paper it appears in.

4.What is the difficulty level of Kinetic Theory of Gases questions in BITSAT?

Of the 18 questions analysed for this chapter, 50% are easy, 44% moderate and 6% tough. 2024 had the most, with 3 questions.

5.Which topics in Kinetic Theory of Gases should I focus on?

These topics have carried the most weightage in Kinetic Theory of Gases:

  • Speed of Gas - 9 questions (50%)
  • Gas Laws - 4 questions (22%)
  • Pressure and Energy of gas - 3 questions (17%)
  • Degree of Freedom and Specific Heat has produced the most tough questions (1).
6.Is Kinetic Theory of Gases's weightage in BITSAT going up or down?

Across all 16 papers analysed, Kinetic Theory of Gases has averaged about 1.1 questions per paper. In the last three years (2022–2024), that average has stayed about the same, at about 1.2 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.