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#13-Law-of-Equipartition-of-Energy
(Physics) > Kinetic Theory of Gases

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A diatomic molecule has how many degrees of freedom-                                                                                             

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

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Mean kinetic energy per degree of freedom of gas molecules is:

1. 32kT             

2. kT             

3. 12kT             

4. 32RT

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A gas mixture consist of 2 moles of O2 and 4 moles of Ar at temperature T. Neglecting all vibrational modes, the total internal energy of the system is:

1. 4RT 

2. 15RT

3. 9RT

4. 11RT

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Which one of the following gases possesses the largest internal energy?
1. 2 moles of helium occupying 1 m3 at 300 K
2. 56 kg of nitrogen at 105 Nm2 and 300 K
3. 8 grams of oxygen at 8 atm and 300 K
4. 6×1026 molecules of argon occupying 40 m3 at 900 K
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The degrees of freedom of a triatomic gas is

1.  2                                 

2.  4

3.  6                                 

3.  8

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