Question 1 :
When a solid object is heated, the molecules that make up the object:

Question 2 :
The correct relation connecting the universal gas constant (R), Avogadro number N$_A$ and Boltzmann constant (K) is :

Question 4 :
<p class="wysiwyg-text-align-left">The temperature of a gas contained in a closed vessel is increased by 2 K when the pressure is increased by 2%. The initial temperature of the gas is :<br/></p>

Question 5 :
The deviation of gases from the behaviour of ideal gas is due to :

Question 6 :
If the mean kinetic energy per unit volume of a gas is n times its pressure, then the value of n is

Question 7 :
A gas in a closed container is heated with $10 \,J$ of energy, causing the lid of the container to rise $2m$ with $3N$ of force. What is the total change in energy of the system ?

Question 8 :
<p class="wysiwyg-text-align-left">An air bubble rises from the bottom of a deep&#160;lake the radius of the air bubble near the surface&#160;is 'r'. Choose the appropriate radius of the air bubble.</p><p class="wysiwyg-text-align-left">a) r/2 at depth 30m&#160;</p><p class="wysiwyg-text-align-left">b) r/2 at depth 70m</p><p>c) r/3 at depth 140m&#160;</p><p>d) r/3 at depth 260m</p>

Question 9 :
<p class="wysiwyg-text-align-left">A vessel of volume 4 litres contains a mixture of&#160;8gms of O$_{2}$, 14 gms of N$_{2}$&#160;and 22 gms of CO$_{2}$ at&#160;27$^{0}$C. The pressure exerted by the mixture is</p>

Question 10 :
'N' molecules each of mass 'm', of gas A and '2N' molecules, each of mass '2m', of gas B are contained in the same vessel. Which is maintained at a temperature T. The mean square of the velocity of molecules of B type is denoted by $V^{2}$ and the mean square of the X component of the velocity of A type is denoted by $\omega^{2}$, $\displaystyle\ \frac{\omega^{2}}{V^{2}}=$