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

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Question # 1

Thermal radiations are a type of:

Question # 2

The nature of thermal radiation is smaller to:

Question # 3

A process which is carried at constant temperature and Boyle's law can be applied is called:

Question # 4

Hotness and coldness of an object is represented in terms of:

Question # 5

Steam engine is:

Question # 6

Carnot engine is ____________ heat engine.

Question # 7

If temperature of the sink is decreased, efficiency of a carnot engine.

Question # 8

When heat is added to the system, the entropy change is:

Question # 9

No entropy change is associated with:

Question # 10

A gas which strictly obeys the gas laws under all conditions of temperatures and pressure is called:

Question # 11

A process in which no heat enters or leaves the system is called.

Question # 12

If the temperature difference between hot and cold body is greater the heat engine is:

Question # 13

Most motorbikes have ____________ cylinder/s engine but cars usually have _________ cylinders on the same crankshaft.

Question # 14

The equation W = ________𝜟U represents:

Question # 15

Pressure may be defined as_____per second per unit area:

Question # 16

Real gases strictly obey gas laws at:

Question # 17

In an ideal gas, the molecules have:

Question # 18

As the working substance of a heat engine completes a cycle, there is no change in:

Question # 19

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

Question # 20

For a gas obeying Boyle's law, if the pressure is doubled the volume becomes:

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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 Pressure may be defined as_____per second per unit area:
A. Change in force
B. Change in momentum
C. Change in energy
D. Work done
2 No entropy change is associated with:
A. Isothermal
B. Adiabatic process
C. Isobaric process
D. None of them
3 Diesel engine coverts ____________ of available heat energy into work.
A. 20% to 25%
B. 25% to 30%
C. 30% to 35%
D. 35% to 40%
4 If a molecule with momentum mv strikes a wall and rebound then the change in momentum will be:
A. -2 mv
B. Zero
C. 2 mv
D. mv
5 In an ideal gas, the molecules have:
A. Kinetic energy only
B. Potential energy only
C. Both KE and PE
D. None of these
6 Carnot cycle is:
A. Reversible
B. Irreversible
C. Sometimes A, Sometimes B
D. None of these
7 The equation PVr = Constant applies to:
A. Isothermal process
B. Adiabatic process
C. Isobaric process
D. None of these
8 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
9 Brownian motion confirms the truth of :
A. Wave theory of light
B. Boyle's law
C. Kinetic theory of gases
D. Adiabatic process
10 The pressure exerted on the walls on the vessel by gas molecules is defined as:
A. Force per unit volume
B. Energy per unit area
C. mass per unit volume
D. None of these

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