Pressure versus temperature graph of an ideal gas is as shown in figure. Density of the gas at point A is ρ0 . Density at B will be

    

1.  34ρ0                             

2.  32ρ0

3.  43ρ0                             

4.  2 ρ0

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The figure shows graphs of pressure versus density for an ideal gas at two temperatures T1 and T2

      

1. T1>T2                       

2. T1=T2

3. T1<T2                       

4. Nothing can be predicted

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

1.                          

2. 

 

3.                        

4. 

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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

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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

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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

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The figure shows the volume V versus temperature T graphs for a certain mass of a perfect gas at two constant pressures of P1 and P2 . What interference can you draw from the graphs

1. P1 > P2

2. P1 < P2

3.  P1=P2

4. No interference can be drawn due to insufficient information

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The change in volume V with respect to an increase in pressure P has been shown in the figure for a non-ideal gas at four different temperatures T1, T2,T3 and T4 . The critical temperature of the gas is

1. T1                                 

2. T2

3. T3                                 

4. T4

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In the adjoining figure, various isothermals are shown for a real gas. Then

1. EF represents liquification

2. CB represents liquification

3. HI represents the critical temperature

4. AB represents gas at a high temperature

Please attempt this question first.

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From the following P-T graph what interference can be drawn

 

1. V2 > V1                             

2. V2 < V1

3. V2 = V1                             

4. None of the above

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