Kinetic theory

Question 1

Explain how a solid is arranged?

Answer 1

Solid is the lowest energy states of matter. There are strong bonds between atoms and atoms are in a rigid and ordered structure. Solid substances retain their shape.

Question 2

Explain how a gas is arranged?

Answer 2

Gases are the highest energy a substance can be. There are no bonds holding the atoms together and therefore the atoms move freely and expand to fill a container.

Question 3

What is evaporation?

Answer 3

Evaporation is when a liquid changes to a gas but it is not the same as boiling.

Question 4

What allows liquids to evaporate quickly?

Answer 4

• It is warm. The average energy is higher and more articles have the energy to break bonds.
• The liquid is spread out. The liquids larger surface area means there are more particles at the surface.
• It is windy. Air can only hold a certain number of liquid particles before is is saturated, if it is windy the air above the liquid will be blown away and there is room for more liquid particles

Question 5

What is condensation?

Answer 5

Condensation is when a gas turns back into a liquid state and can occur at the boiling point or lower. Condensation occurs better on objects that will conduct the heat energy away from the gas better