GMAS Phases and 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 the addition or removal of energy.

Front

What are the three main phases of matter?

Back

The three main phases of matter are solid, liquid, and gas.

Front

What happens to the particles in a solid when it is heated?

Back

The particles in a solid vibrate faster and may eventually break free from their fixed positions, leading to a phase change.

Front

What is sublimation?

Back

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

Front

What is the role of thermal energy in phase changes?

Back

Thermal energy is added or removed to change the state of matter, affecting particle movement and arrangement.

Front

What happens to the speed of particles when energy is added?

Back

When energy is added, the speed of particles increases.

Front

What section of the phase change graph represents a liquid being heated?

Back

The section C-D of the phase change graph represents a liquid being heated.

Front

What section of the phase change graph represents a solid being heated?

Back

The section A-B of the phase change graph represents a solid being heated.

Front

What is evaporation?

Back

Evaporation is the phase change from liquid to gas that occurs at the surface of a liquid.

Front

What is condensation?

Back

Condensation is the phase change from gas to liquid, often occurring when gas cools.