AR & Other Type MCQs Kinetic Theory of Gases Physics NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

Select the correct option based on statements below:

Assertion (A):	As a gas bubble rises from the bottom of a lake, its volume decreases.
Reason (R):	As the gas bubble rises from the bottom of a lake-the pressure of the gas within decreases.

1.	(A) is True but (R) is False.
2.	(A) is False but (R) is True.
3.	Both (A) and (R) are True and (R) is the correct explanation of (A).
4.	Both (A) and (R) are True but (R) is not the correct explanation of (A).

Subtopic: Ideal Gas Equation |

67%

From NCERT

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Q2:

Given below are two statements:

Assertion (A):	The translational kinetic energy of every molecule of an ideal gas increases by 50% if the absolute temperature is raised by $50\text{%}.$
Reason (R):	The average translational kinetic energy of the molecules of an ideal gas is directly proportional to its absolute temperature.

1.	(A) is true but (R) is false.
2.	(A) is false but (R) is true.
3.	Both (A) and (R) are true and (R) is the correct explanation of (A).
4.	Both (A) and (R) are true but (R) is not the correct explanation of (A).

Subtopic: Kinetic Energy of an Ideal Gas |

From NCERT

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Q3:

Consider the following statements. The internal energy of an ideal monoatomic gas may have contributions from:

(1)	translational kinetic energy of its molecules
(2)	vibrational kinetic energy of its molecules
(3)	rotational kinetic energy of its molecules
(4)	potential energy corresponding to molecular forces

Which of the statements given above is/are correct?

1.	(2) and (3)
2.	(1) and (4)
3.	(1) only
4.	(1), (2), (3) and (4)

Subtopic: Kinetic Energy of an Ideal Gas |

55%

From NCERT

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Q4:

The figure shows a plot of PV/T versus P for $1.00 \times 10^{- 3} k g$ of oxygen gas at two different temperatures.

The value of PV/T where the curves meet on the y-axis is:

$1 . 0.06 J K^{- 1}$
$2 . 0.36 J K^{- 1}$
$3 . 0.16 J K^{- 1}$
$4 . 0.26 J K^{- 1}$

Subtopic: Ideal Gas Equation |

58%

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Q5:

Given below are two statements:

Assertion (A):	The molecules of a monoatomic gas has three degrees of freedom.
Reason (R):	The molecules of diatomic gas have five degrees of freedom.

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 |

93%

From NCERT

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Q6:

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 |

67%

From NCERT

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Q7:

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 |

62%

From NCERT

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Q8:

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 |

50%

From NCERT

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Q9:

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 |

From NCERT

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Q10:

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 |

66%

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