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  • 1(current)
Q. No.
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 |
Level 3: 35%-60%
Hints
Consider the following statements. The internal energy of an ideal monoatomic gas may have contributions from:
(a) translational kinetic energy of its molecules
(b) vibrational kinetic energy of its molecules
(c) rotational kinetic energy of its molecules
(d) potential energy corresponding to molecular forces
Which of the statements given above is/are correct?
1. (b) and (c)
2. (a) and (d)
3. (a) only
4. (a), (b), (c) and (d)
Subtopic:  Kinetic Energy of an Ideal Gas |
 56%
Level 3: 35%-60%
Hints
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 a gas collide with each other, causing their velocities to change.
 
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%
Level 2: 60%+
Hints
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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 |
 67%
Level 2: 60%+
Hints
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 |
 55%
Level 3: 35%-60%
Hints
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 |
Level 4: Below 35%
Hints
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