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

Internal energy of a gas decreased when

Question # 2

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

Question # 3

Specific heat a different substances varies becouse of

Question # 4

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

Question # 5

Entropy of universe is increasing day by da due to.

Question # 6

Diffusion of gases occurs because the molecules of the

Question # 7

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

Question # 8

The number of molecules or atoms in a specific volume of a gas is independent of their

Question # 9

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

Question # 10

Which one of the following temperature scales is independent of the properties of any particular substance.

Question # 11

Which of the following gases has the maximum rms speed at STP.

Question # 12

When ever a system is made to complete a cyclic process the work done during the complete cycle.

Question # 13

Mean free path in a gas is the

Question # 14

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

Question # 15

Real gases obey gas laws only at

Question # 16

The normal Human body temperature in Fahrenheit scale is.

Question # 17

When a liquid is hated retaining its liquid sate then its molecules gain.

Question # 18

Which quantity provides a quantitative measure of disorder.

Question # 19

In order of a cyclic heat engine operating between two heat reservoirs to be as efficient as a Carnot engine. It must be.

Question # 20

In Isochoric process there is no

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PPSC Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Mean free path of gas molecules is inversely proportional to its
A. Volume
B. Pressure
C. Temperature
D. Size
2 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
3 Which of the following is the science of measuring the heat of chemical reactions or physical changes.
A. Thermometry
B. Calorimetry
C. Telemetry
D. Photometry
4 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
5 Significant motion for the molecules of a monoatomic gas is.
A. Rotatory
B. Vibratory
C. Translatory
D. Random
6 What is a thermal properly of a material that determines the quantity of energy required to change the phase of a unit mass of that substance.
A. Specific heat
B. Latent heat
C. Internal energy
D. Specific energy
7 How do solar heat and light reach the Earth.
A. By radiation
B. By convection
C. By conduction
D. By conduction and convection
8 Which gas strictly obeys gas laws.
A. Hydrogen gas
B. Inert gas
C. Ideal perfect gas
D. Helium gas
9 At absolute zero of temperature.
A. The molecular energy is zero
B. Molecules have translational K.E
C. Molecules have rotational K.E.
D. Molecules have maximum energy
10 In free expansion of a gas. the internal energy of the system.
A. Increases
B. Descreases
C. Remain unchanged
D. Becomes infinite

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