Dry ice is used in fire extinguishers. The dry ice is stored in the cylinder in a solid form. When sprayed on a fire it quickly changes into the gas known as carbon dioxide (CO2). What is this change of state called?
Sublimation
Evaporation
Distillation
Condensation
Study the diagram carefully. It shows the way that the particles of a solid occupies space. The particles of a solid are packed closely together and cannot move around but they can vibrate.Select the property of a solid from the list below, which is consistent with (matches) this micro-view of this state of matter.
No definite volume
Cannot be compressed
Can flow
No definite shape
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 force that binds the particles of matter together is known as
nuclear force
intermolecular force
internal force
binding force
When two gases mix together, they are said to
evaporate
condense
diffuse
melt
The diagram shows the changes in state of water (H2O). What is the process W called?
Melting
Freezing
Boiling
The conversion of gas into liquid is called
freezing
condensation
sublimation
fusion
Which one of the following is not a property of a gas?
Definite volume
Can be compressed
Definite mass