The ratio of the specific heats CPCV=γ in terms of degrees of freedom (\(n\)) is given by:
1. \(1+1/n\)
2. \(1+n/3\)
3. \(1+2/n\)
4. \(1+n/2\)

Subtopic:  Specific Heat |
 81%
From NCERT
NEET - 2015
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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 \(10^5 ~\text{Nm}^{-2}\) and 300 K
3. 8 grams of oxygen at 8 atm and 300 K
4. \(6 \times 10^{26}\) molecules of argon occupying 40 m3 at 900 K
Subtopic:  Law of Equipartition of Energy |
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The molecules of a given mass of gas have rms velocity of 200 ms-1 at \(27^{\circ}\mathrm{C}\) and 1.0 x 105 Nm-2 pressure. When the temperature and pressure of the gas are increased to, respectively, \(127^{\circ}\mathrm{C}\) and 0.05 X 10Nm-2, rms velocity of its molecules in ms-1 will become:
1. 400/√3
2. 100√2/3
3. 100/3 
4.100√2

Subtopic:  Types of Velocities |
 79%
From NCERT
NEET - 2016
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At room temperature, the rms speed of the molecules of certain diatomic gas is found to be \(1930\) m/s. The gas is:
1. \(H_2\)
2. \(F_2\)
3. \(O_2\)
4. \(Cl_2\)

Subtopic:  Types of Velocities |
 61%
From NCERT
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At which temperature the velocity of \(\mathrm{O_2}\) molecules will be equal to the velocity of \(\mathrm{N_2}\) molecules at \(0^\circ \mathrm{C}?\)

1. \(40^\circ \mathrm{C}\) 2. \(93^\circ \mathrm{C}\)
3. \(39^\circ \mathrm{C}\) 4. Cannot be calculated
Subtopic:  Types of Velocities |
 77%
From NCERT
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If the pressure in a closed vessel is reduced by drawing out some gas, the mean free path of the molecules:

1. decreases
2. increases
3. remains unchanged
4. increases or decreases according to the nature of the gas

Subtopic:  Mean Free Path |
 74%
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The specific heat of an ideal gas is:

1.  proportional to T.                     

2.  proportional to T2.

3.  proportional to T3.                  

4.  independent of T.

Subtopic:  Specific Heat |
 63%
From NCERT
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The specific heat of a gas:

1. has only two values \(Cp\) and \(Cv\).   
2. has a unique value at a given temperature.
3. can have any value between 0 and  ∞.
4. depends upon the mass of the gas.
 

Subtopic:  Specific Heat |
 57%
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For hydrogen gas \(C_P-C_V=a\) and for oxygen gas \(C_P-C_V=b\) where molar specific heats are given. So the relation between \(a\) and \(b\) is given by: (where \(C_p\) and \(C_V\) in J mol-1 K-1)
1. \(a=16b\)
2. \(b=16a\)
3. \(a=4b\)
4. \(a=b\)

Subtopic:  Specific Heat |
 63%
From NCERT
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The translatory kinetic energy of a gas per \(\text{g}\) is:

1. \({3 \over 2}{RT \over N}\) 2. \({3 \over 2}{RT \over M}\)
3. \({3 \over 2}RT \) 4. \({3 \over 2}NKT\)
Subtopic:  Kinetic Energy of an Ideal Gas |
 61%
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