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

When the temperature of a body is equal to that of the surrounding then the body appears

Question # 2

An ice making machine extracts energy at the rate of 500 W The specific latent heat of fusion of ice is 300 kj kg-1. How long does it take to freeze 2 kg of water at 0 oC.

Question # 3

In Isochoric process there is no

Question # 4

Which one of the following gases posses maximum oot mean square velocity.

Question # 5

The average K.E. of the molecules of an ideal gas in a closed rigid container is increased by a factor of 4 What happen to the pressure of the gas.

Question # 6

If T1 and T2 are source and sink temperature respectively Carnot efficiency is.

Question # 7

If a gas does 10 J of external work white expanding then the change in internal energy is equal to.

Question # 8

If the gas pressure is increased then its mean free path becomes.

Question # 9

If the number of gas molecules in a cubical vessel is increase from N to 3 N then its pressure and total energy will be.

Question # 10

Triple point of water in Kelvin scale is

Question # 11

Gas exert pressure on walls of the visual because gas molecules.

Question # 12

Mean free path of gas molecules is inversely proportional to its.

Question # 13

In ideal gas equation PV = nRT , R is

Question # 14

Pressure of a gas depends upon

Question # 15

Diffusion of gases occurs because the molecules of the

Question # 16

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

Question # 17

What is the minimum number of thermodynamic parameters required to specify the state of gas system.

Question # 18

What makes the air coming out of a punctured tyre cool.

Question # 19

Gas law PV = constant is for

Question # 20

Which of the following should not change in isothermal operation.

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PPSC Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Most cooking involves
A. Adiabatic process
B. Isothermal process
C. Isobaric process
D. Isochoric process
2 Identify the irreversible process
A. Explosion of a bomb
B. Slow expansion of a gas
C. Slow compression of a gas
D. Slow compression of an eleastic spring
3 Mean free path of gas molecules is inversely proportional to its.
A. Volume
B. Pressure
C. Temperature
D. Weight
4 The door of an operating refrigerator in a closed room is opened after sometime the temperature of the room will be
A. Lowered
B. Raised
C. Unaffected
D. Become zero
5 Temperature of a system remains constant in
A. Adiabatic process
B. Isobaric process
C. Isothermal process
D. Isochoric process
6 The ratio between the energy dissipated in some process and the heat that appears as a result is the
A. Specific heat
B. Mechanical equivalent of heat
C. Kilocalories
D. Triple point
7 During solid ficain the temperature.
A. Remains constant at the freezing point
B. Increases at the freezing point
C. Decreases at the freezing point
D. Decreases at the melting point
8 If temperature of the sink is decreased the efficiency of a Carnot engine
A. Increases
B. Decreases
C. Remains constant
D. First increases and thend ecreases
9 The specific heat capacity of a substance is the amount of heat required to.
A. Raise its temperature by 1 K
B. Raise the temperature of 1 kg of the substance by 1 K
C. Melt 1 kg of the substance
D. Boil 1 kg of the substance
10 What is world's average surface air temperature.
A. 5 oC
B. 10 oC
C. 15 oC
D. 20 oC

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