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

In which process the change in internal energy of the system is zero:

Question # 2

Brownian motion confirms the truth of :

Question # 3

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

Question # 4

In which process, the change in internal energy of the system of zero:

Question # 5

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

Question # 6

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

Question # 7

The equation PVr = Constant applies to:

Question # 8

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

Question # 9

The efficiency of a particle heat engine:

Question # 10

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

Question # 11

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

Question # 12

Petrol engine coverts ____________ of available heat energy into work.

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

The nature of thermal radiation is smaller to:

Question # 17

The motion of molecules in gases i:

Question # 18

No of spark plugs needed in diesel engine is:

Question # 19

Which of the following does not have the same units:

Question # 20

Thermal radiations are a type 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 If a molecule with momentum mv strikes a wall and rebound then the change in momentum will be:
A. -2 mv
B. Zero
C. 2 mv
D. mv
2 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
3 The number of molecules in one mole of gas is equal to:
A. Avogadro number NA
B. Gas constant R
C. Boltzmann constant k
D. None of these
4 The motion of molecules in gases i:
A. Orderly
B. Random
C. Circular
D. All of these
5 When two objects come to common temperature, the body is said to be in:
A. Static equilibrium
B. Dynamic equilibrium
C. Thermal equilibrium
D. None of these
6 When heat is added to the system, the entropy change is:
A. Positive
B. Negative
C. Zero
D. None of these
7 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
8 The temperature scale approved in SI units is:
A. Calslus scale
B. Kelvin scale
C. Fehrenhelt scale
D. None of these
9 The efficiency of a particle heat engine:
A. can be 100%
B. Cannot be 100%
C. Is always zero
D. None of these
10 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

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