At constant volume, for different diatomic gases the molar specific heat is

1. Same and 3 cal/mole/°C approximately

2. Exactly equal and its value is 4 cal/mole/°C

3. Will be totally different

4. Approximately equal and its value is 5 cal/mole/°C

Subtopic:  Specific Heat |
 60%
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At constant volume the specific heat of a gas is 3R2 , then the value of 'γ' will be

1.  32                             

2.  52

3.  53                             

4.  None of the above

Subtopic:  Specific Heat |
 83%
From NCERT
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The relation between two specific heats (in cal/mol) of a gas is-

1.  CP-CV=RJ                               

2.  CV-CP=RJ

3.  CP-CV=J                                 

4.  CV-CP=J

Subtopic:  Specific Heat |
 88%
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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%
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The following sets of values for CV and CP of a gas has been reported by different students. The units are cal/gm-mole-K. Which of these sets is most reliable

1. CV=3, CP=5                                 

2. CV=4, CP=5

3. CV=3, CP=2                                 

4. CV=3, CP=4.2

Subtopic:  Specific Heat |
 80%
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The specific heats at constant pressure is greater than that of the same gas at constant volume because

1. At constant pressure work is done in expanding the gas

2. At constant volume work is done in expanding the gas

3. The molecular attraction increases more at constant pressure

4. The molecular vibration increases more at constant pressure

Subtopic:  Specific Heat |
 67%
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%
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For a gas the difference between the two specific heats is 4150 J/kg K. What is the specific heats at constant volume of gas if the ratio of specific heat is 1.4

1. 8475 J/Kg K                           

2. 5186 J/Kg K

3. 1600 J/Kg K                           

4. 10375 J/Kg K

Subtopic:  Specific Heat |
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The specific heat of 1 mole of an ideal gas at constant pressure, CP and at constant volume ,CV are given. Then-

1. CP of hydrogen gas is 52R

2. CV of hydrogen gas is 72R

3. H2 has very small values of CP and CV

4. CP-CV= 1.99 cal/mole-K for H2

Subtopic:  Specific Heat |
 66%
From NCERT
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