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

If the pressure in a closed vessel is reduced by drawing some gas the mean free path of the gas molecules.

Question # 2

In onw cycle of a steam engine there are how many dead centres.

Question # 3

An inflated tyre suddenly bursts As a result of this temperature of the surrounding

Question # 4

Which one of the following is an example of a reversible process.

Question # 5

Mean free path in a gas is the

Question # 6

Mean free path of gas molecules is inversely proportional to its

Question # 7

If the temperature of the source and sink are increased by same amount the efficiency of the engine.

Question # 8

Because of second law of thermodynamics about the direction of energy flow what is possible.

Question # 9

When a solid is melting the temperature remains constant even through heat is being supplied because the

Question # 10

Which of the following has maximum specific heat.

Question # 11

The SI unit of heat capacity is.

Question # 12

The gas temperature is increased from 27 oC to 127 oC What is the ratio of mean kinetic energies.

Question # 13

Which of the following is a non contacting device that intercepts and measures thermal radiation.

Question # 14

A metallic rod is continuously heated at its two ends, The heat following through the rod does not depend upon.

Question # 15

The ration of Universal gas constant and Avogadro's number is called.

Question # 16

Which of the following pairs represent units of the same physical quantity.

Question # 17

The internal inertia of a thermodynamics system is known as.

Question # 18

The internal energy of monoatomic gas is.

Question # 19

The volume of a goas at constant pressure is directly proportional to the temperature as measured on the.

Question # 20

Which of the following in the best container for gas during adiabatic process.

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PPSC Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 From any substance the temperature and pressure at which the material can coexist in all three states in equilibrium is called.
A. Critical point
B. Triple point
C. Initial point
D. Final point
2 Law of increase of entropy is a result of
A. First law of thermodynamics
B. Second law of thermodynamics
C. Third law of thermodynamics
D. Zeroth law of thermodynamics
3 Specific heat a different substances varies becouse of
A. Same number of molecules in unit mass
B. Different number of molecules in unit mass
C. Different K.E. of molecules in unit mass
D. Same K.E. of molecules in unit mass
4 What is world's average surface air temperature.
A. 5 oC
B. 10 oC
C. 15 oC
D. 20 oC
5 By definition a gas is said to be have undergone adiabatic compressing when
A. No heat exchange occurs between the gas and its surroundings
B. The gas is compressed quickly
C. The gas is compressed slowly
D. The temperature of the gas remains constant
6 What is the heat required in Kilo joules when the temperature of 100 g of copper is raised thgough 20 K/. Specific heat capacity of copper is 0.4 x 10-3 kg -1 k-1
A. 0.4 kj
B. 0.8 kj
C. 400 kj
D. 800 kj
7 A gas thermometer is more sensitive than a mercury thermometer because the expansion of gas for 1 o/c rise in temperature is.
A. Five times as much as mercury
B. Ten times as much as mercury
C. Twenty times as much as mercury
D. Hundred times as much as mercury
8 Let at constant temperature the pressure of an ideal gas be doubled so that the new volume is.
A. Doubled the original volume
B. Same as original volume
C. Reduced to half the original volume
D. Reduced to two times the original volume
9 A frictionless heat engine can be 100% efficient only if its exhaust temperature is
A. Equal to the input temperature
B. Less than the input temperature
C. 0 oC
D. 0 K
10 Which thermodynamic law state taht the entropy of a perfect system approaches zero.
A. Zeroth law of thermodynamics
B. First law of thermodynamics
C. Second law of thermodynamics
D. Third law of thermodynamics

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