Matter in our Surroundings

Front

The amount of heat which is used to change the state of matter not for increase the temperature is called

Back

Latent heat

Front

What will produce severe burns? Options: Cold water, Hot water, Boiling water, Steam

Back

Steam

Front

Why does ice float on water?

Back

It has lower density than water due to more volume.

Front

Latent heat of fusion is amount of

Back

heat energy required to change 1 kg solid into liquid completely at its melting point.

Front

When heat is constantly supplied by a burner to boiling water, what happens to the temperature of water during vaporization?

Back

Does not rise at all

Front

What happens when water at 0°C freezes to form ice at the same temperature of 0°C?

Back

Releases some heat

Front

In which form do water molecules have less kinetic energy?

Back

Ice

Front

Which of the following has highest kinetic energy? (a) Particles of ice at 0 degree C, (b) Particles of water at 0 degree C, (c) Particles of water at 100 degree C, (d) Particles of steam at 100 degree C

Back

Particles of steam at 100 degree C

Front

235K = _________°C

Back

-38

Front

At what temperature do liquid water and steam co-exist?

Back

At the boiling point of water