CBSE Class 11 Physics Chapter 13 Kinetic Theory Multiple Choice Questions with Answers. MCQ Questions Class 11 Physics Kinetic Theory with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 11 Physics Kinetic Theory MCQs with Answers to know their preparation level.
Students who are searching for NCERT MCQ Questions for Class 11 Physics Kinetic Theory with Answers are compiled here to get good practice on all fundamentals. Know your preparation level on MCQ Questions for Class 11 Physics with Answers. You can also verify your answers from our provided MCQ Class 11 Physics Kinetic Theory with Answers. So, ace up your preparation with MCQ of Chapter 13 Physics Objective Questions.
MCQ Questions Class 11 Physics Kinetic Theory with Answers - Set - 5
Question 1:
Let v denote the rms speed of the molecules in an ideal diatomic gas at absolute temperature T.
The mass of a molecule is ‘m’ Neglecting vibrational energy terms, the false statement is
(a) a molecule can have a speed greater than 2v
(b) v is proportional to T
(c) the average rotational K.E. of a molecule is 1/4 mv2
(d) the average K.E. of a molecule is 5/6mv
Correct Answer – (C)
Question 2 :
In kinetic theory of gases, it is assumed that molecules
(a) have same mass but can have different volume
(b) have same volume but mass can be different
(c) have different mass as well as volume
(d) have same mass but negligible volume.
Correct Answer – (D)
Question 3 :
The internal energy of an ideal gas is
(a) the sum of total kinetic and potential energies.
(b) the total translational kinetic energy.
(c) the total kinetic energy of randomly moving molecules.
(d) the total kinetic energy of gas molecules.
Correct Answer – (D)
Question 4 :
The ratio of principal molar heat capacities of a gas is maximum for
(a) a diatomic gas
(b) a monatomic gas
(c) a polyatomic gas having linear molecules.
(d) a polyatomic gas having non-linear molecules.
Correct Answer – (B)
Question 5 :
If masses of all molecule of a gas are halved and their speed doubled then the ratio of initial and final pressure will be
(a) 2 : 1
(b) 1 : 2
(c) 4 : 1
(d) 1 : 4
Correct Answer – (A)
MCQ Questions Class 11 Physics Kinetic Theory with Answers
Question 6 :
Gases exert pressure on the walls of the container because the gas molecules
(a) possess momentum
(b) collide with each other
(c) have finite volume
(d) obey gas laws.
Correct Answer – (A)
Question 7 :
A fixed mass of gas at constant pressure occupies a volume V. The gas undergoes a rise in temperature so that the root mean square velocity of its molecules is doubled. The new volume will be
(a) V/2
(b) V / 2
(c) 2 V
(d) 4 V
Correct Answer – (D)
Question 8 :
The correct statement of the law of equipartition of energy is
(a) the total energy of a gas is equally divided among all the molecules.
(b) The gas possess equal energies in all the three directions x,y and z-axis.
(c) the total energy of a gas is equally divided between kinetic and potential energies.
(d) the total kinetic energy of a gas molecules is equally divided among translational and rotational kinetic energies.
Correct Answer – (B)
Question 9 :
On a particular day, the relative humidity is 100% and the room temperature is 30ºC, then the dew point is
(a) 70ºC
(b) 30ºC
(d) 100ºC
(d) 0ºC
Correct Answer – (B)
Question 10 :
The molecules of a given mass of gas have a root mean square velocity of 200m s–1 at 27°C and 1.0 × 105 N m–2 pressure. When the temperature is 127°C and the pressure 0.5 × 105 Nm–2, the root mean square velocity in ms–1, is
(a) 400/√3
(b) 100√2
(c) 100√2/3
(d) 100/3
Correct Answer – (A)
- NCERT Solutions Class 11 Physics Chapter 1 : Physical world
- NCERT Solutions Class 11 Physics Chapter 2 : Units And Measurements
- NCERT Solutions Class 11 Physics Chapter 3 : Motion In A Straight Line
- NCERT Solutions Class 11 Physics Chapter 4 : Motion In A Plane
- NCERT Solutions Class 11 Physics Chapter 5 : Laws of Motion
- NCERT Solutions Class 11 Physics Chapter 6 : Work Energy Power
- NCERT Solutions Class 11 Physics Chapter 7 : Rotational-Motion
- NCERT Solutions Class 11 Physics Chapter 8 : Gravitation
- NCERT Solutions Class 11 Physics Chapter 9 : Mechanical Properties of Solids
- NCERT Solutions Class 11 Physics Chapter 10 : Mechanical Properties of Fluids
- NCERT Solutions Class 11 Physics Chapter 11 : Thermal Properties of Matter
- NCERT Solutions Class 11 Physics Chapter 12 : Thermodynamics
- NCERT Solutions Class 11 Physics Chapter 13 : Kinetic Theory
- NCERT Solutions Class 11 Physics Chapter 14 : Oscillations
- NCERT Solutions Class 11 Physics Chapter 15 : Waves
