The pressure and temperature of two different gases are P and T with volume V for each.  If they are mixed, keeping the same volume and temperature, the pressure of the mixture will be-                          1. P/2        

2. P             

3. 2P           

4. 4P

Subtopic:  Ideal Gas Equation |
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If the mean free path of atoms is doubled then the pressure of the gas will become:                                                                           

1. P/4           

2. P/2           

3. P/8           

4. P

Subtopic:  Mean Free Path |
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A diatomic molecule has how many degrees of freedom-                                                                                             

(1) 3            (2) 4           (3) 5              (4) 6

Subtopic:  Law of Equipartition of Energy |
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A thermally insulated piston divides a container into two compartments.  Volume, temperature, and pressure in the right compartment are 2V, T and 2P, while in the left compartment the respective values are V, T and P.  If the piston can slide freely, then in the final equilibrium position, the volume of the right-hand compartment will be :
1. V
2. 3V5
3. 9V4
4. 12V5

Subtopic:  Ideal Gas Equation |
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The graph which represents the variation of mean kinetic energy of molecules with temperature t°C is ?

(1)

 

(2)

(3) 

(4)

Subtopic:  Kinetic Energy of an Ideal Gas |
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Vrms,Vav,Vmp are root mean square, average and most probable speeds of molecules of a gas obeying Maxwellian velocity distribution. Which of the following statements is correct?

1. Vrms<Vav<Vmp

2. Vrms>Vav>Vmp

3. Vrms < Vav>Vmp

4. Vavg>Vrms<Vmp

Subtopic:  Types of Velocities |
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Gas is found to obey the law P2V = constant. The initial temperature and volume are T0 and V0. If the gas expands to a volume 3V0, its final temperature becomes:

1. T03           

2. T03

3. 3T0           

4. None of these

Subtopic:  Ideal Gas Equation |
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For a gas, the r.m.s speed at 800 K is:

1. Four times the value at 200 K

2. Half the value at 200 K

3. Twice the value at 200 K

4. Same as at 200 K

Subtopic:  Types of Velocities |
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The average kinetic energy of a helium atom at 30°C is:                                                                                           [MP PMT 2004]

1. Less than 1 eV

2. A few KeV

3. 50-60 eV

4. 13.6 eV

Subtopic:  Kinetic Energy of an Ideal Gas |
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Choose the correct option related to the specific heat at constant volume CV -

1. CV=12fR           

2. CV=Rγ-1

3. CV=CPγ               

4. All of these

Subtopic:  Specific Heat |
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