Question 1 :
<p class="wysiwyg-text-align-left">At constant temperature and volume, the mass of a gas is related to pressure as :</p>

Question 2 :
An ideal gas has an initial volume $V$ and pressure $P$. In doubling its volume the minimum work done will be in (of the given processes):

Question 3 :
Gas exerts pressure on the walls of container because the molecules-

Question 4 :
A molecule of gas in a container hits one wall (1) normally and rebounds back. It suffers no collision and hits the opposite wall (2) which is at an angle of $30^o$ with wall 1.<br>Assuming the collisions to be elastic and the small collision time to be the same for both the walls, the magnitude of average force by wall 2. $(F_2)$ provided the molecule during collision satisfy<br>

Question 5 :
With increases of temperature, the vibration volume in any substance _____

Question 6 :
Assertion: Vibrational degree of freedom of a di-atomic gas molecule appears at every high temperature. Reason: Di-atomic gas has two vibrational degree of freedom in one direction.

Question 7 :
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 molecules of a gas collide with each other and the velocities of the molecules change due to the collision.

Question 8 :
A closed vessel contains some gas at a given temperature and pressure. If the vessel is given a very high velocity, the temperature of the gas<br>

Question 9 :
One mole of an ideal monoatomic gas is heated at a constant pressure from $0^oC$ to $100^oC$. Then the change in the&#160;internal energy of the gas is (Given $R = 8.32 {Jmol}^{-1}K^{-1}$)

Question 10 :
If for a gas $\dfrac{R}{C_V}=0.67$, this gas is made up of molecules which are.

Question 11 :
Two&#160;blocks of the same metal having the same mass and at temperature $T_1$&#160; and $T_2$, respectively. are brought in contact with each other and allowed to attain thermal equilibrium at constant pressure. The change in entropy, $\Delta S$, for this process is :

Question 12 :
Root mean square speed of the molecules of ideal gas is $v$. If pressure is increased two times at constant temperature, the $rms$ speed will become:<br/>