The relation between two specific heats of a gas is

1.  ${\mathrm{C}}_{\mathrm{P}}-{\mathrm{C}}_{\mathrm{V}}=\frac{\mathrm{R}}{\mathrm{J}}$

2.  ${\mathrm{C}}_{\mathrm{V}}-{\mathrm{C}}_{\mathrm{P}}=\frac{\mathrm{R}}{\mathrm{J}}$

3.  ${\mathrm{C}}_{\mathrm{P}}-{\mathrm{C}}_{\mathrm{V}}=\mathrm{J}$

4.  ${\mathrm{C}}_{\mathrm{V}}-{\mathrm{C}}_{\mathrm{P}}=\mathrm{J}$

Concept Questions :-

Specific heat
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The specific heat of an ideal gas is

1.  Proportional to $\mathrm{T}$

2.  Proportional to ${\mathrm{T}}^{2}$

3.  Proportional to ${\mathrm{T}}^{3}$

4.  Independent of $\mathrm{T}$

Concept Questions :-

Specific heat
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Molar specific heat at constant volume is ${\mathrm{C}}_{\mathrm{V}}$ for a monoatomic gas is

1.  $\frac{3}{2}\mathrm{R}$

2.  $\frac{5}{2}\mathrm{R}$

3.  $3\mathrm{R}$

4.  $2\mathrm{R}$

Concept Questions :-

Specific heat
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The following sets of values for ${\mathrm{C}}_{\mathrm{V}}$ and ${\mathrm{C}}_{\mathrm{P}}$ of a gas has been reported by different students. The units are cal/gm-mole-K. Which of these sets is most reliable

1.

2.

3.

4.

Concept Questions :-

Specific heat
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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

Concept Questions :-

Specific heat
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Difficulty Level:

The specific heat of a gas

1. Has only two values ${\mathrm{C}}_{\mathrm{P}}$ and ${\mathrm{C}}_{\mathrm{V}}$

2. Has a unique value at a given temperature

3. Can have any value between 0 and $\infty$

4. Depends upon the mass of the gas

Concept Questions :-

Specific heat
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For a gas if $\mathrm{\gamma }=1.4$, then atomicity, ${\mathrm{C}}_{\mathrm{P}}$ and ${\mathrm{C}}_{\mathrm{V}}$ of the gas are respectively

1. Monoatomic,

2. Monoatomic,

3. Diatomic,

4. Triatomic,

Concept Questions :-

Specific heat
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Difficulty Level:

For hydrogen gas ${\mathrm{C}}_{\mathrm{P}}-{\mathrm{C}}_{\mathrm{V}}=\mathrm{a}$ and for oxygen gas ${\mathrm{C}}_{\mathrm{P}}-{\mathrm{C}}_{\mathrm{V}}=\mathrm{b}$ . So the relation between a and b is given by

1.

2.

3.

4. $\mathrm{a}=\mathrm{b}$

Concept Questions :-

Specific heat
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Difficulty Level:

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

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Difficulty Level:

The specific heat of 1 mole of an ideal gas at constant pressure $\left({\mathrm{C}}_{\mathrm{P}}\right)$ and at constant volume $\left({\mathrm{C}}_{\mathrm{V}}\right)$ which is correct

1. ${\mathrm{C}}_{\mathrm{P}}$ of hydrogen gas is $\frac{5}{2}\mathrm{R}$

2. ${\mathrm{C}}_{\mathrm{V}}$ of hydrogen gas is $\frac{7}{2}\mathrm{R}$

3. ${\mathrm{H}}_{2}$ has very small values of ${\mathrm{C}}_{\mathrm{P}}$ and ${\mathrm{C}}_{\mathrm{V}}$

4. ${\mathrm{C}}_{\mathrm{P}}-{\mathrm{C}}_{\mathrm{V}}=$ 1.99 cal/mole-K for ${\mathrm{H}}_{2}$

Concept Questions :-

Specific heat