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

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

Question # 2

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

Question # 3

The temperature scale approved in SI units is:

Question # 4

Which of the following does not have the same units:

Question # 5

Petrol engine coverts ____________ of available heat energy into work.

Question # 6

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

Question # 7

When a gas is compressed:

Question # 8

In thermodynamics, the change in internal energy depends upon:

Question # 9

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

Question # 10

Number of spark plugs needed in diesel engine is:

Question # 11

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

Question # 12

The efficiency of a practical heat engine:

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

No entropy change is associated with:

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

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

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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 The rate of change of momentum of a molecule is equal to:
A. Pressure
B. Work
C. Density
D. Force
2 No entropy change is associated with:
A. Isothermal
B. Adiabatic process
C. Isobaric process
D. None of them
3 Number of spark plugs needed in diesel engine is:
A. Four
B. Five
C. Six
D. None of these
4 The number of molecules in one mole of gas is equal to:
A. Avogadro number NA
B. Gas constant R
C. Boltzmann constant k
D. None of these
5 When a gas is compressed:
A. Its internal energy decreases
B. Its temperature decreases
C. Its temperature increases
D. None of these
6 For a gas obeying Boyle's law, if the pressure is doubled the volume becomes:
A. One half
B. Double
C. Four times
D. None of these
7 Change in momentum per second is:
A. Product force and time
B. Product of pressure and area
C. Ratio of pressure and area
D. None of these
8 The value of universal gas constant R is:
A. 8.314 J/K mole K
B. 8314 J/ mole K
C. 8.314 J/ mole K
D. None of these
9 What will be efficiency of carnot engine when it is operated between the temperatures 47oC and 127 oC:
A. Reversible
B. Irreversible
C. Sometimes A and B
D. None of these
10 The law of thermodynamics which discusses the condition under which heat energy is converted into and equivalent amount of work is:
A. 1st
B. 2nd
C. 3rd
D. None of these

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