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
High Yielding Test Series + Question Bank - NEET 2020

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
High Yielding Test Series + Question Bank - NEET 2020

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

High Yielding Test Series + Question Bank - NEET 2020

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
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

One mole of ideal monoatomic gas $\left(\mathrm{\gamma }=5/3\right)$ is mixed with one mole of diatomic gas $\left(\mathrm{\gamma }=7/5\right)$. What is $\mathrm{\gamma }$ for the mixture? $\mathrm{\gamma }$ denotes the ratio of specific heat at constant pressure, to that at constant volume

1.  3/2

2.  23/15

3.  35/23

4.  4/3

Concept Questions :-

Specific heat
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

A gaseous mixture contains equal number of hydrogen and nitrogen molecules. Specific heat measurements on this mixture at temperatures below 100 K would indicate that the value of $\mathrm{\gamma }$ (ratio of specific heats) for this mixture is

1.  3/2

2.  4/3

3.  5/3

4.  7/5

Concept Questions :-

Specific heat
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

One mole of monoatomic gas and three moles of diatomic gas are put together in a container. The molar specific heat  at constant volume is

1.  18.7

2.  18.9

3.  19.2

4.  None of the above

Concept Questions :-

Specific heat
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The number of translational degrees of freedom for a diatomic gas is

1.  2

2.  3

3.  5

4.  6

Concept Questions :-

Specific heat
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

For a gas if ratio of specific heats at constant pressure and volume is $\mathrm{\gamma }$ then value of degrees of freedom is

1.  $\frac{3\mathrm{\gamma }-1}{2\mathrm{\gamma }-1}$

2.  $\frac{2}{\mathrm{\gamma }-1}$

3.  $\frac{9}{2}\left(\mathrm{\gamma }-1\right)$

4.  $\frac{25}{2}\left(\mathrm{\gamma }-1\right)$

Concept Questions :-

Specific heat
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

If a gas has n degrees of freedom ratio of specific heats of gas is

1.  $\frac{1+\mathrm{n}}{2}$

2.  $1+\frac{1}{\mathrm{n}}$

3.  $1+\frac{\mathrm{n}}{2}$

4.  $1+\frac{2}{\mathrm{n}}$

Concept Questions :-

Specific heat