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

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

Question # 2

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

Question # 3

At constant temperature, if the density of the gas is increased, its pressure will:

Question # 4

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

Question # 5

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

Question # 6

Number of spark plugs needed in diesel engine is:

Question # 7

Carnot cycle is:

Question # 8

The equation PVr = Constant applies to:

Question # 9

When a gas is compressed:

Question # 10

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

Question # 11

Which of the following does not have the same units:

Question # 12

The only significant motion possessed by the mono-atomic gas molecules is:

Question # 13

The ideal gas obey gas law at:

Question # 14

No entropy change is associated with:

Question # 15

No of spark plugs needed in diesel engine is:

Question # 16

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

Question # 17

One degree of thermodynamics scale of temperature is called:

Question # 18

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

Question # 19

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

Question # 20

Truth of kinetic energy theory is confirmed by:

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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 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%
2 Hotness and coldness of an object is represented in terms of:
A. Heat
B. Temperature
C. Chemicial
D. None of these
3 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
4 The temperature scale approved in SI units is:
A. Calslus scale
B. Kelvin scale
C. Fehrenhelt scale
D. None of these
5 The rate of change of momentum of a molecule is equal to:
A. Pressure
B. Work
C. Density
D. Force
6 The efficiency of a practical heat engine:
A. Can be 100%
B. Can not be 100%
C. Is always Zero
D. None of these
7 At constant temperature, if the density of the gas is increased, its pressure will:
A. Decrease
B. Increase
C. Remain unchanged
D. None of these
8 The relationship between Boltzmann constant K with R and NAis given as:
A. k = RNA
B. k = R/NA
C. k = NR/NA
D. None of these
9 Electromagnetic waves emitted by hot bodies are called:
A. Photoelectrons
B. Alpha rats
C. Thermal radiation
D. None of these
10 The ideal gas obey gas law at:
A. Low tempratures and high pressures
B. High temperatures and low pressures
C. All temperatures and pressures
D. None of these

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