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]

1. \(mkT\) 2. \(\dfrac{P}{kT}\)
3. \(\dfrac{P}{kTV}\) 4. \(\dfrac{Pm}{kT}\)

Subtopic:  Ideal Gas Equation |
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In the adjacent V-T diagram, what is the relation between P1 and P2 ?

    


1. P2=P1                               

2. P2>P1

3. P2<P1                                 

4. cannot be predicated
 

Subtopic:  Ideal Gas Equation |
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Which one of the following graph is correct at constant pressure?

1. 2.
3. 4.
Subtopic:  Ideal Gas Equation |
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The equation p+av2v-b=RT is known as:

1. Perfect gas equation

2. Joule Thomson's equation

3. Vander Waal's equation

4. Maxwell's equation

Subtopic:  Ideal Gas Equation |
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The temperature of an ideal gas is increased from 27° to 927°C. The r.m.s. speed of its molecules becomes-

1. twice           

2. half           

3. four times         

4. one fourth

Subtopic:  Types of Velocities |
 75%
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An ideal gas is filled in a vessel, then

1. If it is placed inside a moving train, its temperature increases

2. Its centre of mass moves randomly

3. Its temperature remains constant in a moving car

4. None of these

Subtopic:  Kinetic Energy of an Ideal Gas |
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The molecular weight of two gases is \(M_1\) and \(M_2.\) At any temperature, the ratio of root mean square velocities \(v_1\) and \(v_2\) will be:
1. \(\sqrt{\frac{M_1}{M_2}}\)
2. \(\sqrt{\frac{M_2}{M_1}}\)
3. \(\sqrt{\frac{M_1+M_2}{M_1-M_2}}\)
4. \(\sqrt{\frac{M_1-M_2}{M_1+M_2}}\)

Subtopic:  Types of Velocities |
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According to the kinetic theory of gases, at absolute zero temperature: [AIIM 1998; UPSEAT 2000]

1. Water freezes                             

2. Liquid helium freezes

3. Molecular motion stops               

4. Liquid hydrogen freezes

Subtopic:  Types of Velocities |
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PV versus T graphs of equal masses of \(H_2\)\(He\) and \(O_2\) are shown in the figure. Choose the correct alternative:               

1. A corresponds to \(H_2\), B to \(He\) and C to \(O_2\) 2. A corresponds to \(He\), B to \(H_2\), and C to \(O_2\)
3. A corresponds to \(He\), B to \(O_2\), and C to \(H_2\) 4. A corresponds to \(O_2\), B to \(He\)  and C to \(H_2\)
Subtopic:  Ideal Gas Equation |
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The root-mean-square speed of hydrogen molecules at 300 K is 1930 m/s. Then the root mean square speed of oxygen molecules at 900 K will be: [MH CET 2002; Odisha JEE 2010]

1. 19303 m/s                     

2. 836 m/s

3. 643 m/s                               

4. 19303 m/s

Subtopic:  Types of Velocities |
 55%
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