KTG Questions

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...

A piece of iron is heated in a flame. It first becomes dull red then becomes reddish yellow and finally turns to white hot. The correct explanation for the above observation is possible by using :-...

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

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

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 ...

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...

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

A mixture of 2 moles of helium gas (atomic mass = 4 amu) and 1 mole of argon gas (atomic mass = 40amu) is kept at 300 K in a container. The ratio of the rms speeds is...

Three perfect gases at absolute temperatures T1, T2 and T3 are mixed. The masses of molecules are m1, m2 and m3 and the number of molecules are n1, n2 and n3 respectively. Assuming no loss of energy, ...

A real gas behaves like an ideal gas if its

The speed of sound in oxygen (O2) at a certain temperature is 460 ms-1. The speed of sound in helium (He) at the same temperature will be (assumed both gases to be ideal)...

Two thermally insulated vessels 1 and 2 are filled with air at temperatures (T1, T2), volume (V1, V2) and pressure (P1, P2) respectively. If the valve joining two vessels is opened, the temperature in...

Cooking gas containers are kept in a lorry moving with uniform speed. The temperature of the gas molecules inside will

A student performs an experiment to determine the Young′s modulus of a wire, exactly 2 m long, by Searle′s method. In a particular reading, the student measures the extension in the length...

The specific heats of argon at constant pressure and constant volume are 525 J/kg and 315 J/kg respectively. Its density at NTP will be :-

In a mixture of gases, the average number of degrees of freedom per molecule is 6. The r.m.s. speed of the molecules of the gas is V. The speed of sound in the gas is -

According to the kinetic theory of gases the rms velocity of moleculas of a gas is proportional to :-

Ratio of molecular specific heats of a di- atomic gas will be :-

The average translational kinetic energy of molecule depends on :-