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.
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MCQ Questions Class 11 Physics Kinetic Theory with Answers - Set - 2
Question 1:
The average kinetic energy of the molecules of a gas at 27°C is 9 10-20 J. what is its average K.E. at 227°C?
(a) 5 10-20 J
(b) 10 10-20 J
(c) 15 10-20 J
(d) 20 10-20 J
Correct Answer – (C)
Question 2 :
Which of the following is the unit of specific
(a) J kg/°c
(b) J/kg°c
(c) kg°c/J
(d) J kg/°c²
Correct Answer – (B)
Question 3 :
The temperature of a gas is -68°C. to what temperature should it be heated, so that the r.m.s. velocity of the molecules be doubled?
(a) 357°C
(b) 457°C
(c) 547°C
(d) 820°C
Correct Answer – (C)
Question 4 :
The specific heat of a gas
(a) Has only one value
(b) Has two values CP and CV
(c) Is proportional to the square root of its absolute temperature
(d) Can have any value between 0 and infinity
Correct Answer – (D)
Question 5 :
If 2 kcal, of heat is supplied to a system cause to change the internal energy of a gas is 5030 J, and external work done is 3350 J, then what is mechanical equivalent of heat?
(a) 41.90 J/kcal
(b) 4190 J/cal
(c) 4.19 J/kcal
(d) 4.19 J/cal
Correct Answer – (D)
MCQ Questions Class 11 Physics Kinetic Theory with Answers
Question 6 :
According to kinetic theory of gases, at absolute zero of temperature
(a) Water freezes
(b) Liquid helium freezes
(c) Molecular motion stops
(d) Liquid hydrogen freezes
Correct Answer – (C)
Question 7 :
Following gases are kept at the same temperature. Which gas possesses maximum r.m.s. speed?
(a) Oxygen
(b) Nitrogen
(c) Hydrogen
(d) Carbon dioxide
Correct Answer – (C)
Question 8 :
Average kinetic energy of molecules is
(a) Directly proportional to square root of temperature
(b) Directly proportional to absolute temperature
(c) Independent of absolute temperature
(d) Inversely proportional to absolute temperature
Correct Answer – (B)
Question 9 :
For a gas, the r.m.s. speed at 800K is
(a) Half the value at 200 K
(b) Double the value at 200 K
(c) Same as at 200 K
(d) Four times the value at 200 K
Correct Answer – (B)
Question 10 :
One mole of an ideal gas requires 207 J heat to raise the temperature by 10 K, when heated at constant pressure. If the same gas is heated at constant volume to raise the temperature by 10K, then heat required is
(a) 96.6 J
(b) 124 J
(c) 198.8 J
(d) 215.4 J
Correct Answer – (B)
- 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
