PPSC Physics Topic 3 MCQ Test With Answer

PPSC Physics lecturer test contains questions about Thermal Properties Of Matter. This topic deals with the reaction of different states of matter when studied under different levels of thermal conditions. Learning about how different types of matter behave when exposed to different temperatures has enabled physicists and scientists to invent thousands of useful items. In the PPSC Physics online test, you can attempt the type of questions that are usually asked about Thermal Properties Of Matter in the PPSC physics test. The importance of the matter and its interaction with different conditions of temperature makes it an important concept in the understanding of the subject matter of physics.

All candidates can prepare for PPSC Physics test on our free IlmKiDunya.com online test preparation portal. By taking this test, you can expand the understanding you already have of this topic. Attempt the PPSC Physics test MCQs regarding this topic right now and test your abilities!

MCQ's Test For PPSC Physics Topic 3 Thermal Properties of Matter

Try The MCQ's Test For PPSC Physics Topic 3 Thermal Properties of Matter

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PPSC Physics Topic 3 Thermal Properties of Matter

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Question # 1

A heat engine with 100% efficiency would have to

Question # 2

Diffusion of gases occurs because the molecules of the

Question # 3

Which of the following is an example of irreversible process.

Question # 4

The pressure necessary to liquify a gas at the critical temperature is called.

Question # 5

The ration Cv/Cp = y for a diatomic gas like air is

Question # 6

What happen to entropy in an irreversible cycle.

Question # 7

When a hot liquid is mixed with a cold liquid temperature of the mixture.

Question # 8

The specific heat of an ideal gas values as

Question # 9

When all the systems taking part in a process are included, the entropy.

Question # 10

The kinetic molecular model of matter describe matter an being made up of molecules in continuous.

Question # 11

In which given process does the system always return to the original thermodynamic state.

Question # 12

If two gases have same reduced pressure volume and temperature it is according to

Question # 13

Efficiency of a Carnot engine depends on

Question # 14

Which of the following is an example of an irreversible process.

Question # 15

If temperature of the sink is decreased the efficiency of a Carnot engine

Question # 16

Real gases obey gas laws only at

Question # 17

On which parameter internal energy of an ideal gas depends upon.

Question # 18

The phenomenon of Brownian motion shows that

Question # 19

Change in which parameter determines the work done by a gas during adiabatic prcoess.

Question # 20

The door of an operating refrigerator in a closed room is opened after sometime the temperature of the room will be

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PPSC Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 In Isochoric process there is no
A. Work done
B. Internal energy change
C. Volume change or work done
D. Heat exchanged
2 A standard fixed point for calibrating a thermometer is.
A. Boiling point of water
B. Melting point of ice
C. Temperature of steam
D. Triple point of water
3 The mechanical equivalent of heat is.
A. Physical quantity
B. Constant
C. Conversion factor
D. Zero
4 A sample of an ideal gas may i) energy adiabatically, or ii) Expand isothermally. the net flow of heat into the gas from the exterior is.
A. Positive is each case
B. Negative for i) and positive for ii)
C. Zero for i) and positive for ii)
D. Positive for i) and negative for ii)
5 Which law states that a change in the internal energy of a closed thermodynamic system is equal to the difference between the heat supplied to the system and teh amount of work by the system on the surrounding.
A. Zeroth law of thermodynamics
B. First law of thermodynamics
C. Second law of thermodynamics
D. Third law of thermodynamics
6 When the temperature of source and sink of a heat engine become equal the entropy change will be.
A. Zero
B. Maximum
C. Minimum
D. Negative
7 What is the minimum number of thermodynamic parameters required to specify the state of gas system.
A. 1
B. 2
C. 3
D. Infinite
8 The gas temperature is increased from 27 oC to 127 oC What is the ratio of mean kinetic energies.
A. 3/4
B. 4/3
C. 9/10
D. 10/9
9 A fixed mass of an ideal gas absorbs 1000 J of heat and expands under a constant pressure of 20 kPa from a volume of 25 x 10-3 m3 to a volume 50 x 10-3 The change internal energy of the gas is.
A. 500 J
B. 1000 J
C. -1000 J
D. Zero
10 When the temperature of a body is equal to that of the surrounding then the body appears
A. Dull black
B. Red hot
C. In thermal equilibrium
D. To be cold

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