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

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

Question # 2

The temperature of a certain substance in Celsius scale of temperature is 800 oC in Kelvin scale it is.

Question # 3

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 # 4

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 # 5

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

Question # 6

How many calories of heat are required to evaporate completely 1 g of ice at 0 oC

Question # 7

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

Question # 8

Which kind of motion is exhibited by molecules of monoatomic gas.

Question # 9

Heat Carnot be transferred from a colder to a hotter region unless work is done This is the statement of.

Question # 10

Which of the given geometries will result in the largest convection consfficient.

Question # 11

What is world's average surface air temperature.

Question # 12

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

Question # 13

Convention is the transfer of thermal energy by means of currents in

Question # 14

For which process is the relation Delta Q = Delta V true.

Question # 15

The normal Human body temperature in Fahrenheit scale is.

Question # 16

The internal inertia of a thermodynamics system is known as.

Question # 17

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.

Question # 18

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 # 19

The mechanical equivalent of heat

Question # 20

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

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PPSC Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 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
2 The ration Cv/Cp = y for a diatomic gas like air is
A. 1.29
B. 1.30
C. 1.40
D. 1.67
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 The specific heat of liquid
A. Decreases with temperature
B. Increases with temperature
C. Remains constant with change in temperature
D. Increases with pressure
5 Mean free path in a gas is the
A. Distance travelled by a molecule before hitting a wall
B. Average distance travelled by a molecule in one second
C. Average distance travelled between molecules between any two successive collisions
D. Root mean square velocity
6 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
7 The pressure necessary to liquify a gas at the critical temperature is called.
A. Normal pressure
B. Atmospheric pressure
C. Critical pressure
D. Liquid pressure
8 What is the represented by the area inside the Carnot cycle.
A. Heat taken to increase the body temperature.
B. Energy loss due to leakage
C. Useful work done
D. Heat rejected by the system
9 A 4 kJ mass of copper of specific heat capacity of 400 J kg-1k-1 is heated for 160 s by a heater of power 200 W what is the rise in temperature.
A. 10 K
B. 16 K
C. 100 K
D. 160 K
10 Difference between Cp and Cv is equal to
A. General gas constant
B. Planck's conatant
C. Molar gas constant
D. Boltzmann's constant

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