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 heat is added over time, illustrating phase changes and temperature increases.

Front

What phase is a substance in at temperatures below its melting point?

Back

Solid

Front

What is the melting point of a substance?

Back

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

Front

What happens during the phase change of fusion?

Back

Fusion is the process where a solid turns into a liquid as it absorbs heat.

Front

What is the boiling point of a substance?

Back

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

Front

What occurs during vaporization?

Back

Vaporization is the phase change from liquid to gas, which can occur through boiling or evaporation.

Front

What is condensation?

Back

Condensation is the process where a gas turns into a liquid as it loses heat.

Front

What is solidification?

Back

Solidification is the phase change where a liquid turns into a solid as it loses heat.

Front

What does the plateau on a heating curve represent?

Back

The plateau represents a phase change where temperature remains constant while heat is added or removed.

Front

What is the significance of the area under the heating curve?

Back

The area under the heating curve represents the total heat energy absorbed or released during the heating or cooling process.