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

The temperature scale approved in SI units is:

Question # 2

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

Question # 3

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

Question # 4

If Cvdonotes molar specific heat at constant volume and𝜟 T is the change in temperature, then Cv𝜟T gives:

Question # 5

First law of thermodynamics is merely a statement of law of conversation of:

Question # 6

The pressure exerted on the walls on the vessel by gas molecules is defined as:

Question # 7

When a gas is compressed:

Question # 8

The nature of thermal radiation is smaller to:

Question # 9

The ideal gas obey gas law at:

Question # 10

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

Question # 11

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

Question # 12

The value of universal gas constant R is:

Question # 13

Diesel engine coverts ____________ of available heat energy into work.

Question # 14

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

Question # 15

Carnot engine is ____________ heat engine.

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

Brownian motion confirms the truth of :

Question # 20

Tick which of the following is not state variable:

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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 Class 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 Absolute zero is considered as that temperature at which:
A. All liquids become gases
B. All gases become liquids
C. Water freezes
D. None of these
3 No entropy change is associated with:
A. Isothermal
B. Adiabatic process
C. Isobaric process
D. None of them
4 When a gas is compressed:
A. Its internal energy decreases
B. Its temperature decreases
C. Its temperature increases
D. None of these
5 When heat is added to the system, the entropy change is:
A. Positive
B. Negative
C. Zero
D. None of these
6 Petrol engine coverts ____________ of available heat energy into work.
A. 20% to 25%
B. 25% to 30%
C. 30% to 35%
D. 35% to 40%
7 In the theory of dimensional analysis, heat may be properly represented by:
A. ML2T-2
B. MT-2
C. ML-1T-1
D. None of these
8 The ratio of output work per cycle to input energy per cycle is called:
A. Entropy
B. Internal energy
C. Efficiency
D. None of these
9 No of spark plugs needed in diesel engine is:
A. Four
B. Five
C. Six
D. None of these
10 The efficiency of a practical heat engine:
A. Can be 100%
B. Can not be 100%
C. Is always Zero
D. None of these

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