Refer to CBSE Class 11 Physics Thermodynamic MCQs provided below. CBSE Class 11 Physics MCQs with answers available in Pdf for free download. The MCQ Questions for Class 11 Physics with answers have been prepared as per the latest syllabus, CBSE books and examination pattern suggested in Class 11 by CBSE, NCERT and KVS. Multiple Choice Questions for Chapter 12 Thermodynamics are an important part of exams for Class 11 Physics and if practiced properly can help you to get higher marks. Refer to more Chapter-wise MCQs for CBSE Class 11 Physics and also download more latest study material for all subjects
MCQ for Class 11 Physics Chapter 12 Thermodynamics
Class 11 Physics students should refer to the following multiple-choice questions with answers for Chapter 12 Thermodynamics in Class 11. These MCQ questions with answers for Class 11 Physics will come in exams and help you to score good marks
Chapter 12 Thermodynamics MCQ Questions Class 11 Physics with Answers
Question: First law of thermodynamics states that
- a) heat is a form of energy
- b) system has pressure
- c) system has temperature
- d) system can do work
Answer: heat is a form of energy
Question: A system X is neither in thermal equilibrium with Y nor with Z. The systems Y and Z
- a) may be in thermal equilibrium
- b) None of these
- c) cannot be in thermal equilibrium
- d) must be in thermal equilibrium
Answer: may be in thermal equilibrium
Question: Which of the following macroscopic variable is not measurable?
- a) None of these
- b) Volume
- c) Pressure
- d) Mass
Answer: None of these
Question: Which of the following is a state variable ?
- a) Internal energy
- b) Heat
- c) Work
- d) All of these
Answer: Internal energy
Question: The internal energy of an ideal gas depends upon
- a) temperature
- b) specific volume
- c) pressure
- d) density
Answer: temperature
Question: Energy transfer brought about by moving the piston of a cylinder containing the gas is known as
- a) work
- b) heat
- c) pressure
- d) temperature
Answer: work
Question: The state of a thermodynamic system is represented by
- a) pressure, volume and temperature
- b) volume only
- c) pressure only
- d) number of moles
Answer: pressure, volume and temperature
Question: Which of the following parameters does not characterize the thermodynamic state of matter?
- a) Work
- b) Temperature
- c) Pressure
- d) Volume
Answer: Work
Question: At a given temperature the internal energy of a substance
- a) in liquid state is less than that in gaseous state.
- b) in liquid state is more than that in gaseous state
- c) is equal for the three states of matter.
- d) in liquid state is equal to that in gaseous state
Answer: in liquid state is less than that in gaseous state.
Question: The variable defined by Zeroth law of thermodynamics is
- a) temperature
- b) internal energy
- c) work
- d) All of these
Answer: temperature
Question: The first operation involved in a Carnot cycle is
- a) isothermal expansion
- b) adiabatic expansion
- c) isothermal compression
- d) adiabatic compression
Answer: isothermal expansion
Question: “Heat cannot by itself flow from a body at lower temperature to a body at higher temperature” is a statement or consequence of
- a) second law of thermodynamics
- b) conservation of momentum
- c) conservation of mass
- d) first law of thermodynamics
Answer: second law of thermodynamics
Question: Air conditioner is based on the principle of
- a) refrigerator
- b) first law of thermodynamics
- c) None of these
- d) Carnot cycle
Answer: refrigerator
Question: Which of the following processes is reversible?
- a) Isothermal compression
- b) Electrical heating of a nichrome wire
- c) Transfer of heat by radiation
- d) Transfer of heat by conduction
Answer: Isothermal compression
Question: Which of the following processes is irreversible?
- a) Transfer of heat by radiation
- b) Adiabatic changes performed slowly
- c) Extremely slow extension of a spring
- d) Isothermal changes performed slowly
Answer: Transfer of heat by radiation
Question: Heat engine is a device by which a system is made to undergo a ...X... process that result in conversion of ...Y... into work. Here, X and Y refer to
- a) cyclic and heat
- b) None of these
- c) isothermal and heat
- d) cyclic and work
Answer: cyclic and heat
Question: Which of the following statements is incorrect?
- a) All reversible cycles have same efficiency
- b) Reversible cycle has more efficiency than an irreversible one
- c) Carnot cycle is a reversible one
- d) Carnot cycle has the maximum efficiency in all cycles
Answer: All reversible cycles have same efficiency
Question: A refrigerator is a
- a) heat engine working in backward direction
- b) air cooler
- c) an electric motor
- d) heat engine
Answer: heat engine working in backward direction
Question: The temperature of source and sink of a heat engine are 127ºC and 27ºC respectively. An inventor claims its efficiency to be 26%, then:
- a) it is impossible
- b) it is possible with high probability
- c) it is possible with low probability
- d) data are insufficient
Answer: it is impossible
Question: If the co-efficient of performance of a refrigerator is 5 and operates at the room temperature 27°C, the temperature inside the refrigerator is
- a) 250 K
- b) 230 K
- c) 260 K
- d) 240 K
Answer: 250 K
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CBSE Class 11 Physics Chapter 12 Thermodynamics MCQs
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MCQs for Physics CBSE Class 11 Chapter 12 Thermodynamics
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Chapter 12 Thermodynamics MCQs Physics CBSE Class 11
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Chapter 12 Thermodynamics CBSE Class 11 MCQs Physics
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CBSE MCQs Physics Class 11 Chapter 12 Thermodynamics
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