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?

           

1.	\(T_1>T_2\)
2.	\(T_1=T_2\)
3.	\(T_1<T_2\)
4.	No inference can be drawn

The expansion of unit mass of a perfect gas at constant pressure is shown in the diagram. Here

1. a = volume, b = $°\mathrm{C}$ temperature

2. a = volume, b = $\mathrm{K}$ temperature

3. a = $°\mathrm{C}$ temperature, b = volume

4. a = $\mathrm{K}$ temperature, b = volume

An ideal gas is initially at temperature T and volume V. Its volume increases by $∆\mathrm{V}$ due to an increase in temperature $∆\mathrm{T}$, pressure remaining constant. The quantity $\mathrm{\delta }=∆\mathrm{V}/\left(\mathrm{V}∆\mathrm{T}\right)$ varies with temperature as:

1.		2.
3.		4.

Pressure versus temperature graph of an ideal gas of equal number of moles of different volumes are plotted as shown in figure. Choose the correct alternative

1. ${\mathrm{V}}_1={\mathrm{V}}_2 , {\mathrm{V}}_3={\mathrm{V}}_4 \mathrm{and} {\mathrm{V}}_2>{\mathrm{V}}_3$

2. ${\mathrm{V}}_1={\mathrm{V}}_2 , {\mathrm{V}}_3={\mathrm{V}}_4 \mathrm{and} {\mathrm{V}}_2<{\mathrm{V}}_3$

3. ${\mathrm{V}}_1={\mathrm{V}}_2 , {\mathrm{V}}_3={\mathrm{V}}_4$

4. ${\mathrm{V}}_4>{\mathrm{V}}_3 > {\mathrm{V}}_2>{\mathrm{V}}_1$

Pressure versus temperature graph of an ideal gas is as shown in figure. Density of the gas at point A is ${\mathrm{\rho }}_0$ . Density at B will be

1.  $\frac{3}{4}{\mathrm{\rho }}_0$                             

2.  $\frac{3}{2}{\mathrm{\rho }}_0$

3.  $\frac{4}{3}{\mathrm{\rho }}_0$                             

4.  $2 {\mathrm{\rho }}_0$

Graph of specific heat at constant volume for a monoatomic gas is

1.                          

2. 

3.                        

4. 

A fix amount of nitrogen gas (1 mole) is taken and is subjected to pressure and temperature variation. The experiment is performed at high pressure as well as high temperatures. The results obtained are shown in the figures. The correct variation of PV/RT with P will be exhibited by

1.  4                                     

2.  3

3.  2                                     

4.  1

A pressure P - absolute temperature T diagram was obtained when a given mass of gas was heated. During the heating process from the state 1 to state 2 the volume

1. Remained constant                   

2. Decreased

3. Increased                                 

4. Changed erratically

A volume V and pressure P diagram was obtained from state 1 to state 2 when a given mass of a gas is subjected to temperature changes. During this process the gas is

1. Heated continuously

2. Cooled continuously

3. Heated in the beginning and cooled towards the end

4. Cooled in the beginning and heated towards the end

The figure shows the volume V versus temperature T graphs for a certain mass of a perfect gas at two constant pressures of ${\mathrm{P}}_1$ and ${\mathrm{P}}_2$ . What interference can you draw from the graphs

1. ${\mathrm{P}}_1 > {\mathrm{P}}_2$

2. ${\mathrm{P}}_1 < {\mathrm{P}}_2$

3.  ${\mathrm{P}}_1={\mathrm{P}}_2$

4. No interference can be drawn due to insufficient information