KTG Questions

The amount of heat energy required to raise the temperature of 1 g of Helium at NTP, from T1 K to T2 K is :-

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

A gas mixture consists of 2 moles of O2 and 4 moles of Ar at temperature T. Neglecting all vibrational modes, the total internal energy of the system is :-

The molecules of a given mass of a gas have r.m.s velocity of 200 ms-1 at 27oC and 1.0 ×105 Nm-2 pressure. When the temperature and pressure of the gas are respectively, 127oC and 0.05 ×105 ...

The mass of a hydrogen molecule is 3.32× 10-27 kg. If 1023 hydrogen molecules strike, per second, a fixed wall of area 2 cm2 at an angle of 45o to the normal, and rebound elastically with a speed...

At what temperature will the rms speed of oxygen molecules become just sufficient for escaping from the Earth's atmosphere ? (Given : Mass of oxygen molecule (m) = 2.76 × 10–26 kg Bolt...

Two non-reactive monoatomic ideal gases have their atomic masses in the ratio 2 : 3. The ratio of their partial pressures, when enclosed in a vessel kept at a constant temperature, is 4 : 3. The ratio...

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

Three moles of an ideal monoatomic gas perform a cycle shown in figure. The gas temperatures in different states are T1 = 400 K, T2 = 800 K, T3 = 2400 K, and T4 = 1200 K. The work done by the gas duri...

Four containers are filled with mono atomic ideal gases. For each container, the number of moles, the mass of an individual atom and the rms speed of the atoms are expressed in terms of n, m and vrms ...

An open glass tube is immersed in mercury in such a way that a length of 8 cm extends above the mercury level. The open end of the tube is then closed and sealed and the tube is raised vertically up b...

In the given (V - T) diagram, what is the relation between pressure P1 and P2 ?...

At room temperature, the rms speed of the molecules of a certain diatomic gas is found to be 1930 m/s. The gas is

If one mole of a monoatomic gas (γ = 5 / 3 ) is mixed with one mole of a diatomic gas (γ = 7 / 5 ), the value of γ for the mixture is

Three closed vessels A, B and C at the same temperature T and contain gases which obey the Maxwellian distribution of velocities. Vessel A contain only O2, B only N2 and C a mixture of equal quantitie...

The temperature of an ideal gas is increased from 120 K to 480 K. If at 120 K theroot mean square velocity of the gas molecules is v, at 480 K it becomes

The average translational energy and the rms speed of molecules in a sample of oxygen gas at 300 K are 6.21 × 10-21 J and 484 m/s respectively. The corresponding values at 600 K are nearly (assum...

The average translational kinetic energy of O2 (molar mass 32) molecules at a particular temperature is 0.048 eV. The translational kinetic energy of N2 (molar mass 28) molecules in eV at the same tem...

A vessel contains 1 mole of O2 gas (molar mass 32) at a temperature T. The pressure of the gas is p. An identical vessel containing one moles of the gas (molar mass 4) at a temperature 2T has pressure...

A vessel contains a mixture of one mole of oxygen and two mole of nitrogen at 300 K. The ratio of the average rotational kinetic energy per O2 molecule to per N2 molecule is...