What is the graph between volume and temperature in Charle's law?
1. An ellipse
2. A circle
3. A straight line
4. A parabola

Two vessels separately contain two ideal gases $A$ and $B$ at the same temperature, the pressure of $A$ being twice that of $B.$ Under such conditions, the density of $A$ is found to be $1.5$ times the density of $B.$ The ratio of molecular weight of $A$ and $B$ is:

An isolated system-

The figure below shows the graph of pressure and volume of a gas at two temperatures $T_1$ and $T_2.$ Which one, of the following, inferences is correct?

The volume $V$ versus temperature $T$ graph for a certain amount of a perfect gas at two pressures $P_1$ and 
$P_2$ are shown in the figure. 

         
Here:

The equation of state for 5g of oxygen at a pressure P and temperature T, when occupying a volume V, will be: (where R is the gas constant)
1. PV = 5 RT
2. PV = (5/2) RT
3. PV = (5/16) RT
4. PV = (5/32) RT

During an experiment, an ideal gas is found to obey an additional law VP² = constant. The gas is initially at temperature T and volume V. What will be the temperature of the gas when it expands to a volume 2V?

1. $\mathrm{T}\text{'}=\sqrt{4}\mathrm{T}$

2. $\mathrm{T}\text{'}=\sqrt{2}\mathrm{T}$

3. $\mathrm{T}\text{'}=\sqrt{5}\mathrm{T}$

4. $\mathrm{T}\text{'}=\sqrt{6}\mathrm{T}$

Volume, pressure, and temperature of an ideal gas are $V,$ $P,$ and $T$ respectively. If the mass of its molecule is $m,$ then its density is:
[$k$=Boltzmann's constant]

Which one, of the following, graphs represents the behaviour of an ideal gas at constant temperature?

1.		2.
3.		4.

How does the temperature change when the state of an ideal gas is changed according to the process shown in the figure?