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

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PPSC Physics Topic 3 Thermal Properties of Matter

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Question # 1

A Carnot engine has the same efficiency between (i) 100 K and 500 K and ii) T and 900 K What will be T.

Question # 2

Which of the following is an example of irreversible process.

Question # 3

The total gain in entropy of the working substance in a Carnot cycle is.

Question # 4

Under steady state the temperature of a body

Question # 5

On which temperature scale a degree is 1/180 of the interval between the freezing point and the boiling point.

Question # 6

The pressure of a goas is directly proportion to

Question # 7

Thermodynamics deals with

Question # 8

Which of the following measures how quickly the thermometer liquid mainly because it

Question # 9

When a fluid in a cylinder expands through a distance 'd' against a piston of area 'A' which is exerting a constant pressure 'P' the work done is equal by.

Question # 10

The heat required to sublime one mole of the substance at standard temperature and pressure is called.

Question # 11

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

Question # 12

When the temperature of source and sink of a heat engine become equal the entropy change will be.

Question # 13

How much lce will melt by 50,000 J of heat.

Question # 14

A Carnot engine can be 100% efficient of the sink is at.

Question # 15

The specific heat of a substance is a function of its

Question # 16

Diffusion of gases occurs because the molecules of the

Question # 17

An immersion heater rated at 150 W is fitted into a large block of ice at 0 oC. The specific latent heat of fusionism 300 J g-1. How long does it take to melt 10 g of ice.

Question # 18

When heat a supplied to a metallic sphere which one of the following changes will occur.

Question # 19

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

Question # 20

Temperature of a gas is related to.

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PPSC Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 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.
A. Half
B. Three times
C. Double
D. Four times
2 What is the average K.E. of gas molecules at temperature equal to K.
A. kt/3
B. 3/2 KT
C. 1/2 KT
D. 2/3 KT
3 A heat engine can develop efficiency equal to 100% if the temperature of the sink is
A. Less than that of source
B. Equal to that of source
C. 0 K
D. 0 oC
4 When all the systems taking part in a process are included, the entropy.
A. Decreases
B. Either remains constant of increases
C. Either remains constant or decreases
D. Remains constnat
5 The practical efficiency of a heat engine is
A. 25% to 30.5 %
B. 35% to 45%
C. 30% to 45%
D. 15% to 25%
6 The ratio of specific heat capacity to motor heat capacity of a body
A. Is a universals cantante
B. Depends upon the mass of the body
C. Depends upon the molecular weight of the body
D. Is dimensionless
7 Which of the following has negative specific heat
A. Ne
B. CO2
C. O2
D. Sturated vapours
8 Significant motion for the molecules of a monoatomic gas is.
A. Rotatory
B. Vibratory
C. Translatory
D. Random
9 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
10 An ideal engine can be 100% efficient only if its exhaust temperatute.
A. Equal to input temperature
B. Less than is input temperature
C. More than its input temperature
D. 0 oC

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