NEET PYQ Kinetic Theory of Gases - Chapter-wise Questions with Solutions

About Kinetic Theory of Gases PYQs

Kinetic Theory of Gases has 209 previous year questions in the Quantrex Academy NEET UG Physics bank. The 209 questions in this list come from NEET (174), MHT CET Medical (18) and JIPMER (17), spanning 2003 to 2026. Each question opens on its own page with the options, the correct answer and the worked solution where available.

NEET Kinetic Theory of Gases PYQs with Solutions

About Kinetic Theory of Gases PYQs

Questions by year (this list)

Kinetic Theory of Gases questions with solutions

Pressure exerted by an ideal gas on the walls of the container is equal to a) mean kinetic energy per unit volume. b) half of mean kinetic energy per unit volume. c) one-third of

Two litre of an ideal gas at 42^ ^ ∘ C is heated at a constant pressure to 357^ ^ ∘ C . Then the final volume is

The temperature at which the mean kinetic energy of the molecules of gas is ((1)/(4))^ th of the mean kinetic energy of its molecules at 147^ ^ ∘ C is

There are two vessels A and B with rigid walls containing ideal gases. The pressure, temperature and volume are P_A , T_A and V in the vessel A and P_B , T_B and V in vessel B.

The pressure P , volume V and temperature T of a gas in the jar A and the other gas in the jar B is at pressure 2P , volume V/4 and temperature 2T , then the ratio of the number

The temperature at which the root-mean-square speed of carbon dioxide molecules becomes just sufficient for escaping Earth's atmosphere is approximately (Mass of carbon dioxide

If the ratio of specific heat of gas γ = (C_p)/(C_v) , then the value of C_p in terms of γ and gas constant R is

The internal energy per molecule for a diatomic (non-rigid) gas is (where k_B is Boltzmann's constant and T is absolute temperature).

According to law of equi-partition of energy the molar specific heat of a rigid diatomic gas at constant pressure is

Statement I- The kinetic energy per molecule of the gas is equal to (3)/(2)k_B T . \ k_B = Boltzmann constant, T = absolute temperature of the gas \ Statement II- For the ideal

The total internal energy of one mole of HCl molecule is (assume the molecule to be non-rigid)

If the pressure of the gas is kept constant, then the mean free path (λ ) of a gas varies with temperature (T ) according to relation

The Translational K.E. of the molecules of a gas at absolute temperature (T) can be doubled by

Two identical vessels are completely filled with two ideal gases A and B. If the ratio of mass of gas A to that of gas B is 1:2 and the ratio of rms speed of molecules of gas A to

For a rigid diatomic molecule, universal gas constant R = n C_p where ' C_p ' is the molar specific heat at constant pressure. The value of fractional number ' n ' is

If a non-linear polyatomic gas has f vibrational nodes, the value of γ = C_p/C_v is (C_p and C_v are specific heats at constant pressure and volume respectively)

A vessel is filled with a gas at a pressure of 76 cm of mercury at a certain temperature. The mass of the gas is increased by 75 % by introducing more gas in the vessel at the

C_p and C_v are the specific heats at constant pressure and constant volume respectively. It is observed that C_p - C_v = a for hydrogen gas and C_p - C_v = b for carbon dioxide

The mean free path of molecules in an ideal gas A is half that of another ideal gas B. The diameter of the spherical molecules of gas A is twice the diameter of the molecules of

An ideal gas is made of polyatomic molecules. Each of the molecules has three translational, three rotational and f number of vibrational modes. If the ratio of heat capacities

A flask contains argon and chlorine in the ratio of 2:1 by mass. The temperature of the mixture is 27^∘ C. The ratio of root mean square speed of the molecules of the two gases (

An oxygen cylinder of volume 30 litre has 18.20 moles of oxygen. After some oxygen is withdrawn from the cylinder, its gauge pressure drops to 11 atmospheric pressure at

The following graph represents the T - V curves of an ideal gas (where T is the temperature and V the volume) at three pressures P_1, P_2 and P_3 compared with those of Charles's

According to the law of equipartition of energy, the number of vibrational modes of a polyatomic gas of constant γ=(C_p)/(C_v) is ( C_P where C_v are the specific heat capacities

The temperature of a gas is - 50 ° C . To what temperature the gas should be heated so that the rms speed is increased by 3 times?

The volume occupied by the molecules contained in 4 . 5kg water at STP, if the intermolecular forces vanish away is

Three vessels of equal capacity have gases at the same temperature and pressure. The first vessel contains helium (monoatomic), the second contains fluorine (diatomic) and the

Match Column - I and Column - II and choose the correct match from the given choices. Column - I Column - II (A) Root mean square speed of gas molecules ( P ) (1)/(3)nm v ^ 2 (B)

An ideal gas equation can be written as, P = ρRT M _ 0 where ρ and M _ 0 are respectively,

A cylinder contains hydrogen gas at pressure of 249kPa and temperature 27 ^ o C . Its density is: (R = 8 .3 JK Mol ^ - 1 K ^ - 1 )

The mean free path for a gas, with molecular diameter d and number density n can be expressed as:

The average thermal energy for a mono-atomic gas is : ( k _ B is Boltzmann constant and T , absolute temperature)

The mean free path l for a gas molecule depends upon diameter, d of the molecule as:

The value of γ(=(C_p)/(C_V)) for hydrogen, helium and another ideal diatomic gas X (whose molecules are not rigid but have an additional vibrational mode), are respectively equal

Increase in temperature of a gas filled in a container will leads to

If 7 ~g ~N_2 is mixed with 20 ~g Ar then C_P / C_V of the mixture will be

Assertion : Equal masses of helium and oxygen gases are given equal quantities of heat. The rise in temperature of helium is greater than that in the case of oxygen. Reason: The

At what temperature will the rms speed of oxygen molecules becomes just sufficient for escaping from the Earth&#39;s atmosphere? (Given Mass of oxygen molecules m = 2.76 × 10 ^

If n mole of a gas changes its temperature from T_1 to T_2 at pressure P . If C_P is given of the gas what is change in entropy?

A closed vessel explodes at 15 ~atm pressure. If temperature of the vessel is 300 ~K at 10 ~atm pressure then find at what temperature will vessel explodes

Assertion : The total translational kinetic energy of all the molecules of a given mass of an ideal gas is 1.5 times the product of its pressure and its volume. Reason : The

A graph between pressure P (along y -axis) and absolute temperature, T (along x -axis) for equal moles of two gases has been drawn. Given that volume of second gas is more than

A cylindrical tube of uniform cross-sectional area A is fitted with two air tight frictionless pistons. The pistons are connected to each other by a metallic wire. Initially, the

Two identical glass spheres filled with air are connected by a horizontal glass tube. The glass tube contains a pellet of mercury at its mid-point. Air in one sphere is at 0^ ∘ C

Mercury boils at 367^ ∘ C . However, mercury thermometers are made such that they can measure temperature upto 500^ ∘ C . This is done by

Two chambers containing m_1 ~g and m_2 ~g of a gas at pressures P_1 and P_2 respectively are put in communication with each other, temperature remaining constant. The common

A cylindrical tube of uniform cross-sectional area A is fitted with two air tight frictionless pistons. The pistons are connected to each other by a metallic wire. Initially, the

Mercury boils at 367^ ∘ C . However, mercury thermometers are made such that they can measure temperature upto 500^ ∘ C . This is done by

Two identical glass spheres filled with air are connected by a horizontal glass tube. The glass tube contains a pellet of mercury at its mid-point. Air in one sphere is at 0^ ∘ C

A graph between pressure P (along y -axis) and absolute temperature, T (along x -axis) for equal moles of two gases has been drawn. Given that volume of second gas is more than

The temperature of a gas is raised from 27^ ∘ C to 927^ ∘ C . The root mean square speed

One mole of a monoatomic ideal gas undergoes the process A arrow B in the given p-V diagram. The molar heat capacity for this process is

Two different isotherms representing the relationship between pressure p and volume V at a given temperature of the same ideal gas are shown for masses m_1 and m_2 , then

The molecules of a given mass of gas have RMS velocity of 200 m s ^ - 1 at 27 ^ o C and 1.0 × 10 ^ 5 N m ^ - 2 pressure. When the temperature and pressure of the gas are

One mole of a monoatomic ideal gas undergoes the process A arrow B in the given p-V diagram. The molar heat capacity for this process is

The temperature of a gas is raised from 27^ ∘ C to 927^ ∘ C . The root mean square speed

Two different isotherms representing the relationship between pressure p and volume V at a given temperature of the same ideal gas are shown for masses m_1 and m_2 , then

The rms speed (in m / s ) of oxygen molecules of the gas at temperature 300 K , is

A horizontal tube of length l closed at both ends, contains an ideal gas of molecular weight M . The tube is rotated at a constant angular velocity ω about a vertical axis passing

4.0g of a gas occupies 22.4 liters at NTP. The specific heat capacity of the gas at constant volume is 5.0J K ^ - 1 mo l ^ - 1 . If the speed of sound in this gas at NTP is 952m s

The ratio of the specific heats C _ P C _ v = γ in terms of degrees of freedom (n) is given by:

Two vessels separately contain two ideal gases A and B at the same temperature, the pressure of A being twice that of B .~Under such conditions, the density of A is found to be

1 mole of H_2 gas is contained in a box of volume V=1.00 ~m^3 at T=300 ~K . The gas is heated to a temperature of T=3000 ~K and the gas gets converted to a gas of hydrogen atoms.

The rms speed (in m / s ) of oxygen molecules of the gas at temperature 300 K , is

A horizontal tube of length l closed at both ends, contains an ideal gas of molecular weight M . The tube is rotated at a constant angular velocity ω about a vertical axis passing

The mean free path of molecules of a gas (radius &lsquo; r &rsquo;) is inversely proportional to:

According to kinetic theory of gases, molecules of a gas behave like

A balloon contains 500 ~m^3 of helium at 27^ ∘ C and 1 atmosphere pressure. The volume of the helium at -3^ ∘ C temperature and 0.5 atmosphere pressure will be

For a gas (R)/(C_v)=0.67 . This gas is made up of molecules which are

In a vessel, the gas is at pressure P , if the mass of all the molecules is halved of their speed is double, then the resultant pressure will be :

During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its temperature. The ratio of (C_p)/(C_v) for the gas is

The amount of heat energy required to raise the temperature of 1 g of helium at NTP, from T_1 ~K to T_2 ~K is

The molar specific heats of an ideal gas at constant pressure and volume are denoted by C_p and C_V respectively. If γ=(C_p)/(C_V) and R is the universal gas constant, then C_V is

In a cylinder their are 60 ~g Ne and 64 ~g O_2 . If pressure of mixture of gases in cylinder is 30 bar then in this cylinder partial pressure of O_2 is (in bar)

A gas mixture contain one mole O_2 gas and one mole He gas. Find the ratio of specific heat at constant pressure to that at constant volume of the gaseous mixture.

The molar specific heats of an ideal gas at constant pressure and volume are denoted by C_P and C_V respectively. If γ=(C_P)/(C_V) and R is the universal gas constant, then C_V is

At what temperature will the rms speed of oxygen molecules becomes just sufficient for escaping from the Earth's atmosphere? (Given Mass of oxygen molecules m = 2.76 × 10 ^

The mean free path of molecules of a gas (radius ‘ r ’) is inversely proportional to: