Phases of Matter

Front

What are the three main phases of matter?

Back

Solid, Liquid, Gas.

Front

How do particles behave in a solid phase?

Back

Particles are closely packed together in a fixed arrangement and vibrate in place.

Front

How do particles behave in a liquid phase?

Back

Particles are close together but can move past one another, allowing liquids to flow.

Front

How do particles behave in a gas phase?

Back

Particles are far apart and move freely, filling the entire volume of their container.

Front

What is the definition of STP (Standard Temperature and Pressure)?

Back

STP is defined as 0 degrees Celsius (273.15 K) and 1 atmosphere (101.3 kPa) of pressure.

Front

What is the shape and volume of a gas?

Back

A gas has no definite shape and no definite volume.

Front

What is the shape and volume of a solid?

Back

A solid has a definite shape and a definite volume.

Front

What is the shape and volume of a liquid?

Back

A liquid has no definite shape but has a definite volume.

Front

What happens to the particles of a substance when it changes from solid to liquid?

Back

The particles gain energy, move apart, and overcome some of the forces holding them together.

Front

What is a phase change?

Back

A phase change is the transition of a substance from one state of matter to another, such as melting, freezing, or boiling.