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

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

Question # 2

Thermal radiations are a type of:

Question # 3

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

Question # 4

Pressure may be defined as_____per second per unit area:

Question # 5

For a gas obeying Boyle's law, if the pressure is doubled the volume becomes:

Question # 6

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

Question # 7

Steam engine is:

Question # 8

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

Question # 9

When two objects come to common temperature, the body is said to be in:

Question # 10

The nature of thermal radiation is similar to:

Question # 11

One degree of thermodynamics scale of temperature is called:

Question # 12

Change in momentum per second is:

Question # 13

The nature of thermal radiation is smaller to:

Question # 14

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

Question # 15

The motion of molecules in gases i:

Question # 16

In the theory of dimensional analysis, heat may be properly represented by:

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

When heat is added to the system, the entropy change is:

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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 Hotness and coldness of an object is represented in terms of:
A. Heat
B. Temperature
C. Chemicial
D. None of these
2 Real gases strictly obey gas laws at:
A. High pressures and low temperatures
B. Low pressures and high temperatures
C. High pressures and & temperatures
D. None of these
3 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
4 Pressure may be defined as_____per second per unit area:
A. Change in force
B. Change in momentum
C. Change in energy
D. Work done
5 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
6 Steam engine is:
A. An optical system
B. A thermal system
C. A thermodynamic system
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 Electromagnetic waves emitted by hot bodies are called:
A. Photoelectrons
B. Alpha rats
C. Thermal radiation
D. None of these
9 The relationship between Boltzmann constant K with R and NAis given as:
A. k = RNA
B. k = R/NA
C. k = NR/NA
D. None of these
10 When heat is added to the system, the entropy change is:
A. Positive
B. Negative
C. Zero
D. None of these

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