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

No entropy change is associated with

Question # 2

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 # 3

The process in which a system undergoes a change of state at constant volume.

Question # 4

The expression PV/KT represents.

Question # 5

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

Question # 6

Mean free path in a gas is the

Question # 7

Diffusion of gases occurs because the molecules of the

Question # 8

Difference between Cp and Cv is equal to

Question # 9

What is the average K.E. of gas molecules at temperature equal to K.

Question # 10

Which law states that if two systems are in thermal equilibrium with a third system they are also in the thermal equilibrium with each other.

Question # 11

In which given process does the system always return to the original thermodynamic state.

Question # 12

A frictionless heat engine can be 100% efficient only if its exhaust temperature is

Question # 13

Efficiency of a Carnot engine can never be 1 or 100% unless cold reservoir is at absolute temperature.

Question # 14

Which one of the following gases posses maximum oot mean square velocity.

Question # 15

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

Question # 16

What happens to internal energy of a piece of lead when hammered.

Question # 17

The internal energy of an isolated system

Question # 18

The amount of heat needed per unit mass to raise the temperature of a system one degree at constant pressure is numerically aqual to

Question # 19

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

Question # 20

The pressure of a gas is directly proportions to

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PPSC Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 Which of the following is heat transfer by means of the emission or absorption of electromagnetic radiation such as sunshine.
A. Conduction or diffusion
B. Convection
C. Radiation
D. Mass transfer
2 What is the necessary condition for Boyle's law to hold good.
A. Isothermal
B. Adiabatic
C. Isobaric
D. Isochoric
3 A perfect gas is one whose
A. Molecules are masless
B. Molecules are energetic
C. Molecules are perfectly elastic
D. Molecules are at rest
4 The highest efficiency of a heat engine whose low temperature is 17 oC and the high temperature of 200 oC is.
A. 20%
B. 30%
C. 35%
D. 40%
5 If the specific latent heat of vaporization of oxygen is 214 kJ kg-1 how much heat will be absorbed when 3.0 kg of oxygen is boiled off at its boiling point.
A. 14 kJ
B. 64 k J
C. 140 kJ
D. 642 k j
6 A sample of an ideal gas may i) energy adiabatically, or ii) Expand isothermally. the net flow of heat into the gas from the exterior is.
A. Positive is each case
B. Negative for i) and positive for ii)
C. Zero for i) and positive for ii)
D. Positive for i) and negative for ii)
7 In ideal gas equation PV = nRT , R is
A. Universal gas constant
B. Avogadro's number
C. Plank's constant
D. Gravitational constant
8 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
9 Mean free path of gas molecules is inversely proportional to its
A. Volume
B. Pressure
C. Temperature
D. Size
10 Net change in entropy of a system in a Carnot's cycle in
A. Positive
B. Negative
C. Zero
D. Infinite

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