CBSE Class 11 Physics Chapter 12 Thermodynamics Multiple Choice Questions with Answers. MCQ Questions Class 11 Physics Thermodynamics with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 11 Physics Thermodynamics MCQs with Answers to know their preparation level.
Students who are searching for NCERT MCQ Questions for Class 11 Physics Thermodynamics 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 Thermodynamics with Answers. So, ace up your preparation with MCQ of Chapter 12 Physics Objective Questions.
MCQ Questions Class 11 Physics Thermodynamics with Answers - Set - 3
Question 1:
The efficiency of a Carnot engine working between 227°C and 27°C is
(a) 100%
(a) 50%
(c) 40%
(a) 20%
Correct Answer – (C)
Question 2 :
The first law of thermodynamics is represented as
(a) dQ = dU + dW
(b) dQ = 2dU + dW
(c) dQ = dU – dW
(d) dQ = dU + 2dW
Correct Answer – (A)
Question 3 :
The efficiency of a Carnot’s engine is
(a) (T2 – T1)/T2
(b) (T1 – T2)/T1
(c) T2 / (T2 – T1)
(d) T1 / (T1 – T2)
Correct Answer – (B)
Question 4 :
For an adiabatic process
(a) temperature changes are bound to occur.
(b) perfect thermal insulation with surroundings are required.
(c) process should be quick.
(d) all of the above are correct.
Correct Answer – (D)
Question 5 :
In an isothermal process, the internal energy of the system
(a) decreases
(b) increases
(c) does not change
(d) none of the above
Correct Answer – (C)
MCQ Questions Class 11 Physics Thermodynamics with Answers
Question 6 :
The efficiency of a Carnot’s engine is
(a) η = 1 – (Q2/Q1)
(b) η = 1 + (Q2/Q1)
(c) η = 1 – (Q1/Q2)
(d) η = 1 + (Q1/Q2)
Correct Answer – (A)
Question 7 :
In a Carnot’s engine, at the end point of the cycle, the temperature is
(a) less than the initial temperature.
(b) more than the initial temperature.
(c) equal to the initial temperature.
(d) zero.
Correct Answer – (C)
Question 8 :
For an isothermal expansion
(a) process should be performed in very small steps.
(b) perfect conducting communication with the surroudings is required.
(c) process should be slow.
(d) all of the above are correct.
Correct Answer – (D)
Question 9 :
Thermodynamics is concerned with the
(a) change of state
(b) measurement of heat
(c) transfer of heat
(d) none of the above
Correct Answer – (C)
Question 10 :
Internal energy of a perfect gas is
(a) wholly potential energy
(b) wholly kinetic energy
(c) partially K.E. and partially P.E. of the molecules
(d) difference of K.E. and P.E. of the molecules
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
