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

An ice making machine extracts energy at the rate of 500 W The specific latent heat of fusion of ice is 300 kj kg-1. How long does it take to freeze 2 kg of water at 0 oC.

Question # 2

The process is which volume of the system remains constant.

Question # 3

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 # 4

What makes the air coming out of a punctured tyre cool.

Question # 5

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

Question # 6

The internal energy of monoatomic gas is.

Question # 7

The behavior of the gases that can be easily liquefied is like that of the.

Question # 8

The expression PV/KT represents.

Question # 9

If we place oure hand below a lighted lamp we feel warmer due to.

Question # 10

Most cooking involves

Question # 11

The practical efficiency of a heat engine is

Question # 12

The internal inertia of a thermodynamics system is known as.

Question # 13

The heat accepted and rejected by a Carnot engine operating between two heat reservoirs defines.

Question # 14

Mean free path of gas molecules in inversely proportional to its.

Question # 15

At the temperature of -273 oC. pressure of a gas at constant volume becomes zero This specific temperature is called.

Question # 16

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 # 17

Which of the following is a non contacting device that intercepts and measures thermal radiation.

Question # 18

The temperature of 1 kg of hydrogen gas is the same as that of 1 kg of helium gas if.

Question # 19

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

Question # 20

Advantage of using gases as thermornetic substrates is taht

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Sr.# Question Answer
1 The specific heat of an ideal gas values as
A. To
B. T1
C. T2
D. T3
2 Gas law PV = constant is for
A. Adiabatic change
B. Isothermal changes
C. Isobaric changes
D. Isochoric changes
3 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%
4 On which temperature scale a degree is 1/180 of the interval between the freezing point and the boiling point.
A. Celsius scale
B. Fahrenheit scales
C. Rankine scale
D. Kelvin scale
5 Temperature of a gas is related to.
A. Total K.E. of the gas molecules
B. The K.E. of the centre of mass of the gas
C. The P.E. of the centre of mass of the gas
D. Total K.E. of the molecules w.r.t the centre of mass of gas
6 Which statement about convection is correct.
A. Brownian motion is a form of convection
B. Convection occurs only in gas
C. Convection results from a density change
D. Evaporation is a form of convection
7 A gas thermometer is more sensitive than a mercury thermometer because the expansion of gas for 1 o/c rise in temperature is.
A. Five times as much as mercury
B. Ten times as much as mercury
C. Twenty times as much as mercury
D. Hundred times as much as mercury
8 In order of a cyclic heat engine operating between two heat reservoirs to be as efficient as a Carnot engine. It must be.
A. A gas engine
B. Adiabatic
C. Reversible
D. A refrigerator
9 The ration of Universal gas constant and Avogadro's number is called.
A. Equilibrium constant
B. Velocity constant
C. Boitzmann's constant
D. Gravitational constant
10 In ideal gas equation PV = nRT , R is
A. Universal gas constant
B. Avogadro's number
C. Plank's constant
D. Gravitational constant
11 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
12 Below which temperature gas can be liquified by increasing its pressure.
A. Natural temperature
B. Boyle temperature
C. Critical temperature
D. Absolute zero
13 The thermal inertia of a thermodynamic system is known as its.
A. Entropy
B. Enthalpy
C. Isothermal conduction
D. Adiabatic conduction
14 If the temperature of the source and sink are increased by same amount the efficiency of the engine.
A. Increases
B. Decreases
C. Remains unchanged
D. May increases of decrease
15 Mean free path of gas molecules is inversely proportional to its
A. Volume
B. Pressure
C. Temperature
D. Size
16 The phenomenon of Brownian motion shows that
A. Molecules exist and can be seen as bright dots moving about
B. Molecules moves about randomly at highs speeds
C. Smoke particles behaves as molecules
D. Smoke particles can be used as models of air molecues.
17 The mechanical equivalent of heat is.
A. Physical quantity
B. Constant
C. Conversion factor
D. Zero
18 Which of the following has maximum specific heat.
A. Glass
B. Iron
C. Brass
D. Lead
19 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.
A. 5 s
B. 10 s
C. 15 s
D. 20 s
20 Thermodynamics concern its primary with the
A. Measurement of quantity of heat
B. Physical effects of temperature changes
C. Conversion of heat into other energy forms
D. Behavior of gases

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