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.

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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 pressure necessary to liquify a gas at the critical temperature is called.

Question # 2

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

Question # 3

If volume of the gas doubled without changing its temperature the pressure of the gas is

Question # 4

Under an isothermal process internal energy of the system.

Question # 5

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

Question # 6

What happens to Carnot efficiency if the source temperature increases.

Question # 7

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

Question # 8

The specific heat of all gases increases with temperature at high temperature decreases at low temperature expectation is

Question # 9

The specific heat of liquid

Question # 10

The phenomenon of Brownian motion shows that

Question # 11

On which of the following the kinetic theory of gases is not applicable.

Question # 12

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

Question # 13

The ideal thermal efficiency of a cyclic heat engine is limited by

Question # 14

On what factor the internal energy of a thermodynamic system depend upon.

Question # 15

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

Question # 16

The process in which no heat enters or leaves the system is called.

Question # 17

Thermodynamics concern its primary with the

Question # 18

Which temperature is the absolute measure of temperature.

Question # 19

The process is which volume of the system remains constant.

Question # 20

A diatomic gas contains only

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Sr.# Question Answer
1 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
2 Absolute zero may be regarded as the temperature of which
A. Water freezes
B. All substances are solids
C. All gases become liquids
D. Molecular motioning a gas would ceases
3 In ideal gas equation PV = nRT , R is
A. Universal gas constant
B. Avogadro's number
C. Plank's constant
D. Gravitational constant
4 One calorie equals to
A. 1.2 J
B. 2.2 J
C. 3.2 J
D. 4.2 J
5 Which of the following is a clinical thermometer.
A. Gas thermometer
B. Mercury thermometer
C. Alcohol thermometer
D. Radiation thermometer
6 Certain gas are called permanent gases because.
A. They cannot be liquified
B. They are perfect gases
C. The critical temperatures are low
D. their boiling points are low
7 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
8 The mechanical equivalent of heat
A. Has the same dimension as heat
B. Has the same dimension as work
C. Has the same dimensions as energy
D. Is dimensionless
9 Which quantity provides a quantitative measure of disorder.
A. Entropy
B. Enthalpy
C. Randomness
D. Chaos
10 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
11 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
12 Which of the following has maximum specific heat.
A. Glass
B. Iron
C. Brass
D. Lead
13 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
14 The specific heat of a substance is a function of its
A. mass
B. Weight
C. Volume
D.
Molecular structure
15 How solid hydrogen is obtained.
A. By cascade process
B. By joule kelvin effect
C. By adiabatic expansion
D. Lowering temperature below melting point
16 In general work done on or by a gas depends on.
A. The initial state only
B. The final state only
C. The initial and final states
D. The initial state the final state and the path
17 What type of process is the Carnot's cycle.
A. Reversible
B. Irreversible
C. Neither reversible nor irreversible
D. May be reversible or irreversible
18 What makes the air coming out of a punctured tyre cool.
A. Isothermal expansion
B. Adiabatic expension
C. Flow at high speed
D. Atmospheric pressure
19 Under steady state the temperature of a body
A. Increase's with time
B. Decreases with time
C. Does not charge with time
D. None of the above
20 Which law states that a change in the internal energy of a closed thermodynamic system is equal to the difference between the heat supplied to the system and teh amount of work by the system on the surrounding.
A. Zeroth law of thermodynamics
B. First law of thermodynamics
C. Second law of thermodynamics
D. Third law of thermodynamics

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