Heating Curve
A series of free Science Lessons for 7th Grade and 8th Grade, KS3 and Checkpoint Science in preparation for GCSE and IGCSE Science.
The following diagram shows a heating curve. Scroll down the page for more examples and solutions.
Heating Curve
- The temperature of the solid rises as we increase the energy of the particles.
- At the melting point, the temperature stops rising and the line becomes horizontal.
- The solid continues to melt. The energy we put in is weakening or breaking the forces of attraction between the particles, allowing the substance to change from a solid to a liquid. The energy is called the latent heat. There is a change of state but no change of temperature.
- When all the solid has melted, the temperature of the liquid will rise again.
- At the boiling point, the temperature stops rising again and the line becomes horizontal.
- When all of the liquid has boiled, the temperature of the gas will rise again.
Changes between states/phases of matter
Explanation of states/phases of matter and what happens when water changes from one state/phase to another.
Graph to show the melting and boiling point of a liquid.
Heating Curve Basics
Interpreting a heating curve. Identifying solid, liquid and gas phases.
Kinetic and potential energy changes. Phase changes, boiling and freezing points.
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