The ice floats on water because
its density is more than water
its density is less than water
it has intermolecular space
none of the above
The diagram shows the changes in state of water (H2O). What is the process Z called?
Freezing
Evaporation
Melting
Boiling
Equal volumes of all gases under similar conditions of temperature and pressure contain equal numbers of molecules. This statement was made by
John Dalton
Berzilius
Avogardo
Gay-Lussac
The diagram shows the changes in state of water (H2O). What is the process X called?
When a gas is compressed it changes its state into a
plasma
vapour
liquid
solid
Sublimation occurs when
a gas changes into a solid
a solid changes into a liquid
a liquid changes into a gas
a solid changes into a gas
The conversion of gas into liquid is called
freezing
condensation
sublimation
fusion
The density of water is maximum at
0°C
100°C
4°C
273K
