Question # 1

The temperature of sun surface is:

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5000°C

4000°C

6000°C

7000°C

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

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Low temperature of water

Low specific heat of water

Less absorption of heat

Large specific heat of water

S.I unit of specific heat is:

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Jkg^-1 K^-1

J^-1kg^-1K^-1

JkgK

Jkg^-1K

Which process produced cooling effect?

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boiling

freezing

condensation

evaporation

"Latent" is derived from ............... word.

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Latin

English

Greek

Roman

The freezing point of Mercury is:

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49 ^oC

-49^oC

39^oC

-39^oC

The temperature at which a solid start melting is:

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Freezing point

Melting point

Fusion point

Both B and C

If a liquid of mass 'm' requires thermal energy 'ΔQv' to completely change into gas at its boiling point without any change in its temperature, then its latent heat of vapourization can be calculated as following:

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Hv = m/ΔQv

Hv = mΔQv

Hv = cmΔQv

Hv =ΔQv/m

The value of absolute zero kelving temperature is:

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273^oC

273^oK

273^oF

-273^oC

Which expands on heating?

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Water

Steel

Copper

All are true

In Fahrenheit scale, upper refrence point is:

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32 ^oF

212 ^oF

180 ^oF

100 ^oF

The unit of Heat is:

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Kelvin

Joule

Jkg^-1 K^-1

kg

The boiling point of mercury is:

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-10 ^oC

150^oC

375^oC

457^oC

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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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