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

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

Question # 2

In an ideal gas, the molecules have:

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

Thermal radiations are a type of:

Question # 7

Number of spark plugs needed in diesel engine is:

Question # 8

Truth of kinetic energy theory is confirmed by:

Question # 9

Brownian motion confirms the truth of :

Question # 10

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

Question # 11

The nature of thermal radiation is similar to:

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

No entropy change is associated with:

Question # 16

Diesel engine coverts ____________ of available heat energy into work.

Question # 17

Which of the following does not have the same units:

Question # 18

In thermodynamics, the change in internal energy depends upon:

Question # 19

The efficiency of a practical heat engine:

Question # 20

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

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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 Steam engine is:
A. An optical system
B. A thermal system
C. A thermodynamic system
D. None of these
2 A process in which no heat enters or leaves the system is called.
A. Adiabatic process
B. Isothermal process
C. Isochoric process
D. None of these
3 According to boyle's law, volume of a given mass of a gas is
A. Inversely proportional mass at constant pressure
B. Directly proportional to pressure at constant temprerature
C. Inversely proportional pressure at constant temprature
D. None of these
4 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
5 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
6 If temperature of the sink is decreased, efficiency of a carnot engine.
A. Remains constant
B. Decreases
C. Increases
D. None of these
7 As the working substance of a heat engine completes a cycle, there is no change in:
A. Internal energy
B. Pressure
C. Volume
D. All of these
8 The nature of thermal radiation is smaller to:
A. Ultraviolet rays
B. Light rays
C. Both of them
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 If the temperature difference between hot and cold body is greater the heat engine is:
A. Not efficient
B. Less efficient
C. More efficient
D. NOne of above

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