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

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

Question # 2

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

Question # 3

When a gas is compressed:

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

Carnot engine is ____________ heat engine.

Question # 9

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

Question # 10

Thermal radiations are a type of:

Question # 11

Brownian motion confirms the truth of :

Question # 12

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

Question # 13

The equation W = ________𝜟U represents:

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

The efficiency of a particle heat engine:

Question # 18

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

Question # 19

The temperature at which all the gases become liquid is called:

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 While dealing with the processes i thermodynamics, the working substances is usually:
A. Oxygen gas
B. Hydrogen gas
C. Ideal gas
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 heat is added to the system, the entropy change is:
A. Positive
B. Negative
C. Zero
D. None of these
4 No of spark plugs needed in diesel engine is:
A. Four
B. Five
C. Six
D. None of these
5 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
6 The pressure exerted on the walls on the vessel by gas molecules is defined as:
A. Force per unit volume
B. Energy per unit area
C. mass per unit volume
D. None of these
7 Avogadro number is known as number of molecules in:
A. One kg of a substance
B. Unit volume of a substance
C. One mole of a substance
D. None of these
8 The rate of change of momentum of a molecule is equal to:
A. Pressure
B. Work
C. Density
D. Force
9 Steam engine is:
A. An optical system
B. A thermal system
C. A thermodynamic system
D. None of these
10 Most motorbikes have ____________ cylinder/s engine but cars usually have _________ cylinders on the same crankshaft.
A. Four , Six
B. One , four
C. two , five
D. None of these

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