MDCAT Physics Chapter 8 MCQ Test With Answer for (Heat and Thermodynamics)

If you are looking for the MCQs of Chapter 8 of Physics, then you are on the right platform. The candidates can check the MCQs from this platform to prepare for the entry test. MDCAT is the MCQs-based test in which the students have to solve the given questions in the provided time.

MCQ's Test For MDCAT Physics Chapter 8 Heat and Thermodynamics Online Test

Try The MCQ's Test For MDCAT Physics Chapter 8 Heat and Thermodynamics Online Test

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MDCAT Physics Chapter 8 Heat and Thermodynamics Online Test

00:00
Question # 1

A certain engine coverts 20% of available heat energy into work. Then its efficiency will be:

Question # 2

In which process the change in internal energy of the system is zero:

Question # 3

Electromagnetic waves emitted by hot bodies are called:

Question # 4

Steam engine is:

Question # 5

The equation W = ________𝜟U represents:

Question # 6

Which of the following does not have the same units:

Question # 7

The law of thermodynamics which discusses the condition under which heat energy is converted into and equivalent amount of work is:

Question # 8

If a molecule with momentum mv strikes a wall and rebound then the change in momentum will be:

Question # 9

Only those processes are probable to take place for which entropy os the system:

Question # 10

One degree of thermodynamics scale of temperature is called:

Question # 11

The value of universal gas constant R is:

Question # 12

Avogadro number is known as number of molecules in:

Question # 13

At constant temperature, if the volume of a given mass of a gas is doubled, then the density of gas becomes:

Question # 14

The rate of change of momentum of a molecule is equal to:

Question # 15

Brownian motion confirms the truth of :

Question # 16

The efficiency of a particle heat engine:

Question # 17

In the theory of dimensional analysis, heat may be properly represented by:

Question # 18

Tick which of the following is not state variable:

Question # 19

Carnot cycle is:

Question # 20

The number of molecules in one mole of gas is equal to:

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The students preparing for the MDCAT must solve the questions before appearing in the entry test. By solving the MCQs, the students can have a better understanding of the topic, and they can ace the test with maximum marks. The students should solve all the provided MCQs. Moreover, the answers are also given to facilitate the students to cross-check after solving the MCQs. It is mandatory to prepare all the topics included in this chapter thoroughly. Stay in touch with us to get more updates about the preparation material for MDCAT.

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MCAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 In which process the change in internal energy of the system is zero:
A. Isochoric process
B. Isobaric process
C. Adiabatic process
D. Isothermal process
2 The efficiency of a particle heat engine:
A. can be 100%
B. Cannot be 100%
C. Is always zero
D. None of these
3 According to boyle's law, volume of a given mass of a gas is
A. Inversely proportional mass at constant pressure
B. Directly proportional to pressure at constant temprerature
C. Inversely proportional pressure at constant temprature
D. None of these
4 If P is the pressure and V is the volume, Then PV will represent:
A. Power
B. Work
C. Force
D. None of these
5 Thermal radiations are a type of:
A. Mechanical waves
B. Electromagnetic waves
C. Alpha rays
D. Electrons
6 Carnot cycle is:
A. Reversible
B. Irreversible
C. Sometimes A, Sometimes B
D. None of these
7 The nature of thermal radiation is smaller to:
A. Ultraviolet rays
B. Light rays
C. Both of them
D. None of these
8 Steam engine is:
A. An optical system
B. A thermal system
C. A thermodynamic system
D. None of these
9 The equation PVr = Constant applies to:
A. Isothermal process
B. Adiabatic process
C. Isobaric process
D. None of these
10 When heat is added to the system, the entropy change is:
A. Positive
B. Negative
C. Zero
D. None of these

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