Question

2) The diagram given below shows the changes of three states of matter. Name the
change and possible reason.
Solids
Gas
Liquids
Change
Names of the Possible changes
Reason
Solid to Liquid
Liquid to Solid
Liquid to Gas
Gas to Liquid
Solid to Gas
Gas to Solid
2 marks​

Answer 1

Answer:

pls attach the diagram to get the answer

Answer 2

Solid to liquid= melting

reason= the structure of solid expands when external heat is supplied , the inter molecular force lessens and the particles moves apart causing the solid to melt

Liquid to Solid= Freezing

Reason= when there is loss of heat from a liquid , the constituent particle of the liquid contracts and freezes.

Liquid to Gas= Boiling or vapourisation

reason= it occurs when a liquid is suddenly heated up to its boiling point where it changes to gas or vapour

Gas to Liquid=condensation

reason= when the gas looses temperature , gases changes to water droplets

Solid to Gas= sublimation

Reason =in this the conversion occurs at a temperature and pressure lower than its triple point.

Gas to Solid = Deposition

Reason= tis usually occurs when thernal or heat energy is removed from the air and the air becomes cold enough .