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

The mechanical equivalent of heat is.

Question # 2

First law of thermodynamics is a

Question # 3

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

Question # 4

In which thermodynamic process enthalpy of the system remains constant.

Question # 5

The gas thermometer is taken as the primary standard because.

Question # 6

During solid ficain the temperature.

Question # 7

In an isobaric process there is no.

Question # 8

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

Question # 9

Which of the following has maximum specific heat.

Question # 10

What should be the shape of an ideal thermometer.

Question # 11

Difference between Cp and Cv is equal to

Question # 12

What is the total entropy change during an reversible cycle.

Question # 13

A heat engine with 100% efficiency would have to.

Question # 14

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

Question # 15

What is a measure of the total energy of a thermodynamics system.

Question # 16

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

Question # 17

In four stroke cycle the crank makes

Question # 18

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

Question # 19

How solid hydrogen is obtained.

Question # 20

The internal energy of monoatomic gas is.

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PPSC Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Two stem engine A and B have their sources at 900 K and 600 K and their sinks are at 450 K and 300 K respectively.
A. They are equally efficient
B. A is less efficient than B
C. a is more efficient than B
D. Their efficiencies cannot be determined
2 The heat accepted and rejected by a Carnot engine operating between two heat reservoirs defines.
A. The efficiency of the working substance of the engine
B. the ideal gas scale of temperature
C. The ratio of the absolute temperature of the reservoirs
D. The thermal capacity of the working substance
3 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
4 The efficiency of a diesel engine is about
A. 15% to 35 5
B. 355 to 40%
C. 45% to 655
D. 505 to 65 %
5 When a hot liquid is mixed with a cold liquid temperature of the mixture.
A. First decreases and then becomes constant
B. First increases and then becomes constant
C. Continuously decreaes
D. Is undefined for some time and then nearly becomes constant
6 Gases exert pressure on walls of the vessels because gas molecules.
A. Possess momentum
B. Have finite volume
C. Collide with each other
D. Obey gas laws
7 Which one of the following gases posses maximum oot mean square velocity.
A. Hydrogen
B. Oxygen
C. Nitrogen
D. Carbon dioxide
8 The specific heat of an ideal gas values as
A. To
B. T1
C. T2
D. T3
9 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
10 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

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