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Q. No.Given below are two statements:
Assertion (A):
The total translational kinetic energy of all the molecules of a given mass of an ideal gas is 1.5 times the product of its pressure and volume.
Reason (R):
The molecules of gas collide with each other and the velocities of the molecules change due to the collision.
1.
Both (A) and (R) are true and (R) is the correct explanation of (A).
2.
Both (A) and (R) are true but (R) is not the correct explanation of (A).
3.
(A) is true but (R) is false.
4.
Both (A) and (R) are false.
Subtopic: Kinetic Energy of an Ideal Gas |
70%
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Given below are two statements:
| Assertion (A): | If a gas container in motion is suddenly stopped, the temperature of the gas rises. |
| Reason (R): | The kinetic energy of ordered mechanical motion is converted into the kinetic energy of random motion of gas molecules. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Kinetic Energy of an Ideal Gas |
66%
From NCERT
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Given below are two statements:
| Assertion (A): | The internal energy of a real gas is a function of both, temperature and volume. |
| Reason (R): | Internal K.E. depends on temperature and internal P.E. depends on volume. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Kinetic Energy of an Ideal Gas |
53%
From NCERT
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Given below are two statements:
| Assertion (A): | Absolute zero temperature is also the zero energy temperature of gas molecules. |
| Reason (R): | At absolute zero temperature, the molecules of gas come to rest, hence possess no energy of any form. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Kinetic Energy of an Ideal Gas |
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Given below are two statements:
| Assertion (A): | The root mean square velocity of molecules of gas having a Maxwellian distribution of velocities is higher than their most probable velocity at any temperature. |
| Reason (R): | A very small number of molecules of a gas which possess very large velocities increase root mean square velocity, without affecting the most probable velocity. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Types of Velocities |
67%
From NCERT
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Given below are two statements:
| Assertion (A): | A gas can be liquified at any temperature by an increase of pressure alone. |
| Reason (R): | On increasing pressure, the temperature of gas decreases. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Ideal Gas Equation |
65%
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Given below are two statements:
| Assertion (A): | The ratio \(C_p\over C_v\) is more for helium gas than for hydrogen gas. |
| Reason (R): | Atomic mass of helium is more than that of hydrogen. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Specific Heat |
76%
From NCERT
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Given below are two statements:
| Assertion (A): | The root mean square and most probable speeds of the molecules in a gas are the same. |
| Reason (R): | The Maxwell distribution for the speed of molecules in a gas is symmetrical. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Types of Velocities |
83%
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Given below are two statements:
| Assertion (A): | For a gas, \(\gamma\)=1.286, the number of degrees of freedom of the molecules of this gas is 7. |
| Reason (R): | The relation between \({\gamma} =1+{2\over n}\) |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Law of Equipartition of Energy |
84%
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Given below are two statements:
| Assertion (A): | The molar heat capacity of the gas can have any value from \(-\infty\) to \(\infty\). |
| Reason (R): | The molar heat capacity of the gas for the isothermal process is \(\infty\). |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Specific Heat |
64%
From NCERT
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