NCERT Solutions for Chapter: Kinetic Theory, Exercise 4: SA

 A gas mixture consists of molecules of types A, B and C with masses $m_A>m_B>m_{\mathrm{C}}$ at constant temperature and pressure, Rank the three types of molecules in decreasing order of

(a) average K.E

 A gas mixture consists of molecules of types A, B and C with masses $m_A>m_B>m_{\mathrm{C}}$ at constant temperature and pressure, Rank the three types of molecules in decreasing order of rms speeds.

 We have  $0.5 g$ of hydrogen gas in a cubic chamber of size 3 cm  kept at NTP. The gas in the chamber is compressed keeping the temperature constant till a final pressure of 100 atm. Is one justified in assuming the ideal gas law, in the final state? (Hydrogen molecules can be consider as sphere of radius $1\AA$.

When air is pumped into a cycle tyre the volume and pressure of the air in the tyre both are increased. What about Boyle's law in this case?

 A ballon has $5.0 \text{g mole}$ of helium at $7°\text{C}$. Calculate the number of atoms of helium in the balloon,

A ballon has $5.0 \text{g mole}$ of helium at $7°\text{C}$. Calculate the total internal energy of the system.

 

Calculate the number of degrees of freedom of molecules of hydrogen in 1 cc of hydrogen gas at NTP.

 An insulated container containing monoatomic gas of molar mass $m$ is moving with a velocity $v_o$ . If the container is suddenly stopped, find the change in temperature.