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

00:00
Question # 1

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

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

Carnot cycle is:

Question # 6

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

Question # 7

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

Question # 8

What will be efficiency of carnot engine when it is operated between the temperatures 47oC and 127 oC:

Question # 9

When a gas is compressed:

Question # 10

A gas which strictly obeys the gas laws under all conditions of temperatures and pressure is called:

Question # 11

In an ideal gas, the molecules have:

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

One degree of thermodynamics scale of temperature is called:

Question # 17

Diesel engine coverts ____________ of available heat energy into work.

Question # 18

The equation W = ________𝜟U represents:

Question # 19

Avogadro number is known as number of molecules in:

Question # 20

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

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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 nature of thermal radiation is similar to:
A. Ultraviolet rays
B. Light rays
C. Both of them
D. None of them
2 Hotness and coldness of an object is represented in terms of:
A. Heat
B. Temperature
C. Chemicial
D. None of these
3 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
4 A certain engine coverts 20% of available heat energy into work. Then its efficiency will be:
A. 20%
B. 80%
C. 50%
D. None of these
5 If P is the pressure and V is the volume, Then PV will represent:
A. Power
B. Work
C. Force
D. None of these
6 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
7 If temperature of the sink is decreased, efficiency of a carnot engine.
A. Remains constant
B. Decreases
C. Increases
D. None of these
8 The efficiency of a practical heat engine:
A. Can be 100%
B. Can not be 100%
C. Is always Zero
D. None of these
9 The equation W = ________𝜟U represents:
A. Thermal process
B. adiabatic process
C. Isobaric process
D. None of these
10 Number of spark plugs needed in diesel engine is:
A. Four
B. Five
C. Six
D. None of these

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