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

Question # 2

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

Question # 3

Brownian motion confirms the truth of :

Question # 4

Petrol engine coverts ____________ of available heat energy into work.

Question # 5

Number of spark plugs needed in diesel engine is:

Question # 6

The equation W = ________𝜟U represents:

Question # 7

The ideal gas obey gas law at:

Question # 8

One degree of thermodynamics scale of temperature is called:

Question # 9

While dealing with the processes i thermodynamics, the working substances is usually:

Question # 10

When a gas is compressed:

Question # 11

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

Question # 12

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

Question # 13

The ratio of output work per cycle to input energy per cycle is called:

Question # 14

The efficiency of a particle heat engine:

Question # 15

The efficiency of a practical heat engine:

Question # 16

Electromagnetic waves emitted by hot bodies are called:

Question # 17

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

Question # 18

According to boyle's law, volume of a given mass of a gas is

Question # 19

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

Question # 20

The nature of thermal radiation is smaller 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 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
2 The only significant motion possessed by the mono-atomic gas molecules is:
A. Translatory
B. Rotatory
C. Vibratory
D. None of these
3 Only those processes are probable to take place for which entropy os the system:
A. Increases
B. Remains constant
C. Both A and B are correct
D. None of above
4 Carnot cycle is:
A. Reversible
B. Irreversible
C. Sometimes A, Sometimes B
D. None of these
5 Truth of kinetic energy theory is confirmed by:
A. Diffusion of gases
B. Brownian motion
C. Both A and B
D. None of these
6 At constant temperature, if the volume of a given mass of a gas is doubled, then the density of gas becomes:
A. Double
B. Remains constant
C. Half
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 If temperature of the sink is decreased, efficiency of a carnot engine.
A. Remains constant
B. Decreases
C. Increases
D. None of these
9 Number of spark plugs needed in diesel engine is:
A. Four
B. Five
C. Six
D. None of these
10 If Cvdonotes molar specific heat at constant volume and𝜟 T is the change in temperature, then Cv𝜟T gives:
A. Volume
B. Pressure
C. Energy
D. Entropy

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