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

In an ideal gas, the molecules have:

Question # 2

Avogadro number is known as number of molecules in:

Question # 3

The relationship between Boltzmann constant K with R and NAis given as:

Question # 4

The efficiency of a practical heat engine:

Question # 5

The efficiency of a particle heat engine:

Question # 6

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

Question # 7

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

Question # 8

The value of universal gas constant R is:

Question # 9

The equation PVr = Constant applies to:

Question # 10

One degree of thermodynamics scale of temperature is called:

Question # 11

Number of spark plugs needed in diesel engine is:

Question # 12

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

Question # 13

Truth of kinetic energy theory is confirmed by:

Question # 14

Pressure may be defined as_____per second per unit area:

Question # 15

The nature of thermal radiation is smaller to:

Question # 16

If P is the pressure and V is the volume, Then PV will represent:

Question # 17

In thermodynamics, the change in internal energy depends upon:

Question # 18

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

Question # 19

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

Question # 20

The rate of change of momentum of a molecule 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 When heat is added to the system, the entropy change is:
A. Positive
B. Negative
C. Zero
D. None of these
2 Brownian motion confirms the truth of :
A. Wave theory of light
B. Boyle's law
C. Kinetic theory of gases
D. Adiabatic process
3 When two objects come to common temperature, the body is said to be in:
A. Static equilibrium
B. Dynamic equilibrium
C. Thermal equilibrium
D. None of these
4 Tick which of the following is not state variable:
A. Heat energy
B. Pressure
C. Entropy
D. Volume
5 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
6 If the temperature difference between hot and cold body is greater the heat engine is:
A. Not efficient
B. Less efficient
C. More efficient
D. NOne of above
7 Which of the following does not have the same units:
A. Work
B. Heat
C. Kinetic energy
D. Power
8 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
9 A certain engine coverts 20% of available heat energy into work. Then its efficiency will be:
A. 20%
B. 80%
C. 50%
D. None of these
10 The nature of thermal radiation is smaller to:
A. Ultraviolet rays
B. Light rays
C. Both of them
D. None of these

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