Question # 1

Evaporation takes place at temperature :

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100°C only

0°C only

35°C Only

At all temperature

Water starts boiling at:

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80 °C

100 °C

90 °C

101 °C

A large water reservoir heeps the temperature of nearby land moderate due to:

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Low temperature

Low specific heat of water

Less absorption of heat

Large specific heat of water

In how many division Fahrenheit scale is divided?

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100

273

180

50

Bimetal strip is made up of two different metal:

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Copper & iron

Brass & Iron

Brass & Nickel

Copper & Nickel

Which process produced cooling effect?

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boiling

freezing

condensation

evaporation

Gallium (element) melts at:

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40 °C

30 °C

80 °C

90 °C

On heating the strip, ___________ expands more than_______

respectively.

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Brass, Iron

Iron, Brass

Copper, brass

Brass, copper

Which gas is replaced by Ammonia in refrigerators?

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Nitrogen

Carbon di oxide

Methane

Freon gas

Process by which liquids changes into vapors is ............... .

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Vaporization

Evaporation

Boiling

None of above

Water freezes at

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0oF

32oF

273 K

0 K

The formula of heat capacity is:

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mc

mc𝜟𝜽

mc𝜟Q/𝜟T

None of these

Water on cooling below 4 ^oC begins to:

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Expand

Contract

Boils

None of these

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9th Class Physics Chapter 8 Thermal Properties of Matter English Medium KPK Boards Online Mcqs MCQs With Answers

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