Phase Changes

Front

What is a phase change?

Back

A phase change is a transition of matter from one state (solid, liquid, gas) to another due to changes in temperature or pressure.

Front

What are the three main states of matter?

Back

Solid, Liquid, Gas.

Front

What happens during condensation?

Back

Condensation is the phase change from gas to liquid, occurring when gas cools and loses energy.

Front

What is sublimation?

Back

Sublimation is the phase change from solid directly to gas without passing through the liquid state.

Front

What is the boiling point?

Back

The boiling point is the temperature at which a liquid turns into vapor.

Front

What is freezing?

Back

Freezing is the phase change from liquid to solid, occurring when a liquid loses energy and its temperature drops.

Front

What is the heating curve?

Back

A heating curve is a graph that shows the temperature of a substance as it is heated over time, illustrating phase changes.

Front

What is the cooling curve?

Back

A cooling curve is a graph that shows the temperature of a substance as it cools over time, illustrating phase changes.

Front

What is the difference between evaporation and boiling?

Back

Evaporation occurs at any temperature and only at the surface of a liquid, while boiling occurs at a specific temperature throughout the liquid.

Front

What is the definition of gas?

Back

A gas is a state of matter with no definite shape and no definite volume, expanding to fill its container.