Heating and Cooling Curves

Front

What is a heating curve?

Back

A heating curve is a graph that shows the change in temperature of a substance as it is heated over time, illustrating phase changes such as melting and boiling.

Front

What is a cooling curve?

Back

A cooling curve is a graph that shows the change in temperature of a substance as it cools over time, illustrating phase changes such as freezing and condensation.

Front

What happens during segment AB of a heating curve?

Back

Segment AB represents the heating of a solid where the temperature increases until it reaches the melting point.

Front

What happens during segment BC of a heating curve?

Back

Segment BC represents the phase change from solid to liquid, known as melting.

Front

What happens during segment DE of a cooling curve?

Back

Segment DE represents the phase change from liquid to solid, known as freezing.

Front

What is the boiling point of water?

Back

The boiling point of water is 100°C at standard atmospheric pressure.

Front

What is condensation?

Back

Condensation is the process where a gas turns into a liquid, typically when it cools down.

Front

What is the definition of matter?

Back

Matter is anything that has mass and occupies space.

Front

What is the melting point?

Back

The melting point is the temperature at which a solid becomes a liquid.

Front

What is the difference between boiling and evaporation?

Back

Boiling occurs at a specific temperature throughout the liquid, while evaporation can occur at any temperature at the surface of the liquid.