Question # 1

The specific heat of water is

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2100 Jkg-1 k-1

4200 Jkg-1 k-1

2500 Jkg-1 k-1

2010 Jkg-1 k-1

Water freezes at:

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0° F

32°F

-273 K

0 K

In kelvin scale, lower reference point is:

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273 K

373 K

180 K

100 K

The boiling point of mercury is:

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-10 ^oC

150^oC

375^oC

457^oC

On heating the strip, ___________ expands more than_______

respectively.

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Brass, Iron

Iron, Brass

Copper, brass

Brass, copper

The temperature at which a solid start melting is:

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Freezing point

Melting point

Fusion point

Both B and C

Latent heat of vaporization is denoted by:

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H1

Hm

Hv

Hf

__________ expands on heating?

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Matter

Plasma

Gas

Solid

Bimetal strip is made up of two different metal:

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Copper & iron

Brass & Iron

Brass & Nickel

Copper & Nickel

Which gas is replaced by Ammonia in refrigerators?

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Nitrogen

Carbon di oxide

Methane

Freon gas

Which of the following do not effect evaporation?

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Temperature

Wind

Volume

Surface area of liquid

When a substance is changed from its solid state to liquid state by adding heat, the process is called

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Melting

Fusion

Freezing

A and B both

Evaporation takes place at temperature :

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100°C only

0°C only

35°C Only

At all temperature

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