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

The temperature of a certain substance in Celsius scale of temperature is 800 oC in Kelvin scale it is.

Question # 2

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

Question # 3

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 # 4

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

Question # 5

If temperature of the sink is decreased the efficiency of a Carnot engine

Question # 6

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 # 7

By definition a gas is said to be have undergone adiabatic compressing when

Question # 8

A mercury in glass thermometer and thermocouple thermometer are both calibrated using the same fixed point of 0 oC and 100 oc when both temperature are used to measure the temperature of a body the temperature measured on both thermometers will be exactly the same

Question # 9

Identify the irreversible process

Question # 10

Which of the following is the science of measuring the heat of chemical reactions or physical changes.

Question # 11

Thermodynamics concern its primary with the

Question # 12

The specific heat of an ideal gas values as

Question # 13

Which of the following parameters does not characterize the thermodynamic state of matter.

Question # 14

Which of the following should not change in isothermal operation.

Question # 15

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.

Question # 16

A heat engine can develop efficiency equal to 100% if the temperature of the sink is

Question # 17

What happen to entropy in an irreversible cycle.

Question # 18

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

Question # 19

Because of second law of thermodynamics about the direction of energy flow what is possible.

Question # 20

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

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PPSC Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 The mechanical equivalent of heat is.
A. Physical quantity
B. Constant
C. Conversion factor
D. Zero
2 Andrews isothermal helps to messure
A. Boiling point
B. Boyle's temperature
C. Temperature of inversion
D. Critical temperature
3 Contrivances for converting heat into work are called.
A. Heat pumps
B. Heat engines
C. IC engines
D. Jet engine
4 When a solid is melting the temperature remains constant even through heat is being supplied because the
A. Heat is being used to break up the intermolecular bonds
B. Solid is not absorbing any heat
C. Molecules are moving faster
D. Molecules are farther a part
5 The average K.E. of the molecules of an ideal gas in a closed rigid container is increased by a factor of 4 What happen to the pressure of the gas.
A. It remains the same
B. It increases by a factor of 2
C. It increases by a factor of 4
D. It increases by a factor of 8
6 Which of the following should not change in isothermal operation.
A. Heat constant
B. Volume
C. Pressure
D. Temperature
7 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
8 The amount of heat needed per unit mass to raise the temperature of a system one degree at constant pressure is numerically aqual to
A. The specific heat
B. The specific thermal energy
C. The specific heat at constant pressure
D. the internal energy of the gas
9 The temperature of 1 kg of hydrogen gas is the same as that of 1 kg of helium gas if.
A. The gases have the same internal energy
B. The gas molecules occupy equal volumes
C. The gas molecules have the same root mean square speed
D. The gas molecules have same mean translational K.E.
10 Why freezer a refrigerator is located in the top section
A. Motor is not affected
B. Heat gained from environment is less
C. The entire chamber of freezer is cooled quickly
D. Heat gained from environment is more

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