Physical States Flashcards
What are the three physical states of matter?
- Solid
- Liquid
- Gas
What are the characteristics of a solid?
- Has a definite volume
- Has a definite shape
- Is difficult to compress
What are the characteristics of a liquid?
- Has a definite volume
- Takes the shape of the container it’s in
- Is difficult to compress
What are the characteristics of a gas?
- Expands to fill the volume available to it
- Takes the shape of the container it’s in
- Is easily compressed
What is melting or fusion?
Change of a solid to a liquid
What is freezing or solidification?
Change of a liquid to a solid
What is boiling?
Process in which a liquid changes to a gas (or vapour) with the formation of bubbles of vapour throughout the liquid
What is evaporation or vaporisation?
Change of a liquid to a gas or vapours without the formation of any visible bubbles
What is condensation or liquefaction?
Change of a gas or vapours to a liquid
What is sublimation?
Change of a solid to a gas without passing through the liquid phase
Fill in the blank: A _______ is a homogeneous mixture in which the dispersed particles are so small that they never settle out.
Solution
What is a solute?
The substance that is dissolved
What is a solvent?
The liquid that does the dissolving
What is a suspension?
Dispersion of particles through a liquid with the particles being sufficiently large that they settle out on standing
True or False: Evaporation can occur at temperatures lower than boiling.
True
What happens during the process of sublimation?
The white solid changes directly to a colourless gas
