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Kinetic Theory of Gases PYQs · MHT CET · JEE Main · NEET

Pressure & Kinetic Energy of a Gas

Questions
39
MHT CET
21
JEE Main
15
NEET
3
Years
1990–2026
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Q1MHT CET 2026 · 13 MAY · SHIFT 1Easy

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

At what temperature, the kinetic energy of a gas molecule is half of the value at 27∘27^\circC?

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Answer: (b)

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Q2MHT CET 2026 · 12 MAY · SHIFT 2Easy

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

At 27∘C27^\circ\text{C} temperature, the mean kinetic energy of the atoms of an ideal gas is E1E_1. If the temperature is increased by 300∘C300^\circ\text{C} then the mean kinetic energy of the atoms will be

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Answer: (c)

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Q3MHT CET 2026 · 19 APR · SHIFT 1Easy

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

The kinetic energy of an ideal gas is E0E_0 at 27∘27^\circC. When the temperature is increased to 177∘177^\circC, then kinetic energy will be

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Answer: (c)

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Q4MHT CET 2026 · 16 APR · SHIFT 1Easy

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

The translational kinetic energy of the molecules of a gas at absolute temperature (T) can be doubled by

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Answer: (d)

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Q5MHT CET 2026 · 15 APR · SHIFT 1Medium

Pressure & Kinetic Energy of a Gas · Assumptions & pressure of a gas

The average force applied on the walls of a closed container depends on temperature (T) as (T is the temperature of an ideal gas)

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Answer: (c)

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Q6MHT CET 2026 · 13 APR · SHIFT 2Medium

Pressure & Kinetic Energy of a Gas · Assumptions & pressure of a gas

Energy of a gas/litre is 600600 joule, then what will be its pressure?

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Answer: (a)

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Q7MHT CET 2026 · 15 APR · SHIFT 2Difficult

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

The average translational kinetic energy of a molecule in a gas is E1E_1. The kinetic energy of the electron (e) accelerated from rest through potential difference 'V' volt is E2E_2. The temperature at which E1=E2E_1 = E_2 possible is (N = number of molecules, R = gas constant)

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Answer: (b)

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Q8MHT CET 2025 · 25 APR · SHIFT 2Easy

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

The initial average kinetic energy of the molecules was E, when a gas sample is at 27∘C27^\circ\text{C}. When the gas is heated to 327∘C327^\circ\text{C}, then the final average kinetic energy will be

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Answer: (b)

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Q9MHT CET 2025 · 22 APR · SHIFT 1Easy

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

The mean kinetic energy of the molecules of an ideal gas at 399∘C399^\circ\text{C} is ' E '. The temperature at which the mean kinetic energy of its molecules will be ' E/2E/2 ', is

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Answer: (d)

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Q10MHT CET 2025 · 19 APR · SHIFT 2Easy

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

Two gases A and B are at absolute temperatures 350 K and 420 K respectively. The ratio of average kinetic energy of the molecules of gas BB to that of gas A is

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Answer: (a)

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Q11MHT CET 2025 · 20 APR · SHIFT 1Medium

Pressure & Kinetic Energy of a Gas · Assumptions & pressure of a gas

The average force applied on the walls of a closed container depends as TxT^{x} where T is the temperature of an ideal gas. The value of xx is

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Answer: (a)

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Q12JEE Main 2025 · 28 JAN · SHIFT 2Medium

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

The kinetic energy of translation of the molecules in 50 g of CO2{}_{2} gas at 17°C is:

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Answer: (d)

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Q13JEE Main 2024 · 9 APR · SHIFT 2Easy

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

The temperature of a gas is −78∘C-78^\circ\text{C} and the average translational kinetic energy of its molecules is KK. The temperature at which the average translational kinetic energy of the molecules of the same gas becomes 2K2K is:

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Answer: (d)

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Q14JEE Main 2024 · 27 JAN · SHIFT 1Easy

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

The average kinetic energy of a monatomic molecule is 0.414 eV0.414\text{ eV} at temperature: (Use KB=1.38×10−23 J/mol-KK_B = 1.38 \times 10^{-23}\text{ J/mol-K})

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Answer: (b)

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Q15MHT CET 2024 · 15 MAY · SHIFT 2Medium

Pressure & Kinetic Energy of a Gas · Assumptions & pressure of a gas

In an ideal gas at temperature TT, the average force that a molecule applies on the walls of a closed container depends on TT as TxT^{x}. The value of xx is

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Answer: (d)

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Q16MHT CET 2024 · 11 MAY · SHIFT 2Medium

Pressure & Kinetic Energy of a Gas · Assumptions & pressure of a gas

What is the pressure of hydrogen in a cylinder of volume 10 litre if its total energy of translation is 7.5×103 J7.5 \times 10^{3}\text{ J}?

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Answer: (a)

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Q17MHT CET 2024 · 10 MAY · SHIFT 1Medium

Pressure & Kinetic Energy of a Gas · Assumptions & pressure of a gas

The average force applied on the wall of a closed container depends as TxT^{x} where T is the temperature of an ideal gas. The value of xx is

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Answer: (b)

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Q18MHT CET 2024 · 2 MAY · SHIFT 2Medium

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

The average translational kinetic energy of nitrogen (molar mass 28) molecules at a particular temperature is 0.042 eV. The translational kinetic energy of oxygen molecules (molar mass 32) in eV at double the temperature is

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Answer: (d)

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Q19JEE Main 2024 · 27 JAN · SHIFT 2Medium

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

The total kinetic energy of 1 mole of oxygen at 27∘C27^\circ\text{C} is: [Use universal gas constant (R)=8.31 J/(R) = 8.31\text{ J/} mole K]

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Answer: (a)

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Q20JEE Main 2023 · 15 APR · SHIFT 1Easy

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

A flask contains Hydrogen and Argon in the ratio 2:12 : 1 by mass. The temperature of the mixture is 30∘C30^\circ\text{C}. The ratio of average kinetic energy per molecule of the two gases ( KK argon/K hydrogen) is: (Given: Atomic Weight of Ar=39.9\text{Ar} = 39.9)

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Answer: (d)

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Q21JEE Main 2023 · 8 APR · SHIFT 2Easy

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

The temperature at which the kinetic energy of oxygen molecules becomes double than its value at 27∘C27^\circ\text{C} is

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Answer: (c)

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Q22JEE Main 2023 · 1 FEB · SHIFT 1Easy

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

The average kinetic energy of a molecule of the gas is

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Answer: (c)

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Q23JEE Main 2023 · 30 JAN · SHIFT 2Easy

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

A flask contains hydrogen and oxygen in the ratio of 2:12 : 1 by mass at temperature 27∘C27^\circ\text{C}. The ratio of average kinetic energy per molecule of hydrogen and oxygen respectively is:

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Answer: (a)

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Q24MHT CET 2023 · 13 MAY · SHIFT 2Medium

Pressure & Kinetic Energy of a Gas · Assumptions & pressure of a gas

A gas at pressure p0p_0 is contained in a vessel. If the masses of all the molecules are halved and their velocities are doubled, then the resulting pressure would be equal to

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Answer: (b)

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Q25MHT CET 2023 · 10 MAY · SHIFT 1Medium

Pressure & Kinetic Energy of a Gas · Assumptions & pressure of a gas

The average force applied on the walls of a closed container depends on TxT^{x} where TT is the temperature of an ideal gas. The value of 'xx' is

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Answer: (d)

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Q26MHT CET 2023 · 9 MAY · SHIFT 2Medium

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

An ideal gas in a container of volume 500 c.c. is at a pressure of 2×10+5 N/m22 \times 10^{+5}\text{ N/m}^{2}. The average kinetic energy of each molecule is 6×10−21 J6 \times 10^{-21}\text{ J}. The number of gas molecules in the container is

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Answer: (d)

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Q27JEE Main 2022 · 26 JUN · SHIFT 2Easy

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

A flask contains argon and oxygen in the ratio of 3: 2 in mass and the mixture is kept at 27∘{}^\circC. The ratio of their average kinetic energy per molecule respectively will be:

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Answer: (d)

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Q28JEE Main 2021 · 24 FEB · SHIFT 2Easy

Pressure & Kinetic Energy of a Gas · Assumptions & pressure of a gas

On the basis of kinetic theory of gases, the gas exerts pressure because its molecules:

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Answer: (c)

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Q29MHT CET 2021 · 22 SEP · SHIFT 1Easy

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

The translational kinetic energy of the molecules of a gas at absolute temperature (T) can be doubled

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Answer: (b)

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Q30MHT CET 2021 · 21 SEP · SHIFT 2Easy

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

If 'EE' is the kinetic energy per mole of an ideal gas and 'TT' is the absolute temperature, then the universal gas constant is given as

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Answer: (b)

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Q31NEET 2021Medium

Pressure & Kinetic Energy of a Gas · Assumptions & pressure of a gas

Match Column - I and Column - II and choose the correct match from the given choices.

Column - IColumn - II
(A)Root mean square speed of gas molecules(P)13 nmvˉ2\frac{1}{3}\ nm\bar{v}^{2}
(B)Pressure exerted by ideal gas(Q)3RTM\sqrt{\frac{3RT}{M}}
(C)Average kinetic energy of a molecule(R)52 RT\frac{5}{2}\ RT
(D)Total internal energy of 1 mole of a diatomic gas(S)32 kBT\frac{3}{2}\ k_BT
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Answer: (d)

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Q32MHT CET 2021 · 24 SEP · SHIFT 1Medium

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

At what temperature does the average translational kinetic energy of a molecule in a gas becomes equal to kinetic energy of an electron accelerated from rest through potential difference of 'V' volt? (N=N = number of molecules, R=R = gas constant, c=c = electronic charge)

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Answer: (a)

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Q33JEE Main 2021 · 27 JUL · SHIFT 1Medium

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

The number of molecules in one litre of an ideal gas at 300 K and 2 atmospheric pressure with mean kinetic energy 2 ×\times 10−-9 J per molecules is:

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Answer: (c)

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Q34JEE Main 2021 · 1 SEP · SHIFT 2Medium

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

The average translational kinetic energy of N2 gas molecules at .............∘{}^\circC becomes equal to the K.E. of an electron accelerated from rest through a potential difference of 0.1 volt. (Given kB = 1.38 ×\times 10−-23 J/K) (Fill the nearest integer).

Numerical answer type. Work it out, then open the answer.

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Answer: 500

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Q35JEE Main 2020 · 5 SEP · SHIFT 1Medium

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

Number of molecules in a volume of 4 cm3 of a perfect monoatomic gas at some temperature T and at a pressure of 2 cm of mercury is close to?

(Given, mean kinetic energy of a molecule

(at T) is 4 ×\times 10–14 erg, g = 980 cm/s2, density of

mercury = 13.6 g/cm3)

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Answer: (d)

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Q36JEE Main 2015 · 10 APR · SHIFT 1Medium

Pressure & Kinetic Energy of a Gas · Assumptions & pressure of a gas

In an ideal gas at temperature T, the average force that a molecule applies on the walls of a closed container depends on T as Tq. A good estimate for q is:

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Answer: (b)

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Q37JEE Main 2014 · 19 APR · SHIFT 1Medium

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

A gas molecule of mass M at the surface of the Earth has kinetic energy equivalent to 0oC. If it were to go up straight without colliding with any other molecules, how high it would rise? Assume that the height attained is much less than radius of the earth. (kB is Boltzmann constant)

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Answer: (d)

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Q38NEET 1996 · AIPMTEasy

Pressure & Kinetic Energy of a Gas · Kinetic energy & temperature

At 0 K which of the following properties of a gas will be zero?

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Answer: (c)

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Q39NEET 1990 · AIPMTEasy

Pressure & Kinetic Energy of a Gas · Assumptions & pressure of a gas

According to kinetic theory of gases, at absolute zero of temperature

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Answer: (c)

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