Question # 1

The efficiency of heat engine whose sink is at 17 ^oC and source at 200 ^oC is.

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38%

63%

80%

90%

Entropy of measure of.

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Internal energy of system

Order of system

Disorder of system

Potential energy of system

The behaviour of gases is discussed by

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Knowing their nature

Knowing their temperature

Kinetic theory

Maxwell's theory

A cycle of petrol engine undergoes

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Two process

Three process

Four process

single process

the work done in isochoric process is.

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Constant

Variable

Zero

Depend upon condition

The mean kinetic energy of gas is at.

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0 ^oC

-273 ^oC

100 K

100 ^oC

The SI unit of product of pressure and volume is.

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_Watt

Joule

Pascal

Newton

Force acting on the piston to move outward is.

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Compressive stoke

Power stoke

All stoke

Exhaust stoke

A constant temperature, if pressure of a given mass of gas is halved, then its volume becomes.

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Halve

Doubled

Four time

Constant

Efficiency of a heat engine working between 27 ^oC and 32 ^oC will be.

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50%

90%

40%

62%

At constant temperature and pressure, if volume of given mass of a gas is doubled then density is.

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Doubled

1/4 original

1/2 of original

Unchanged

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Physics English Medium Fsc Part 1 Chapter 11 Online MCQs Test MCQs With Answers

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