Boiling

Curriculum check:    ✓ Edexcel IGCSE      ✓ OCR GCSE


 A liquid turning into a gas

When you heat a liquid enough to reach its boiling point, it becomes a gas. Here’s the exact process:

  1. As the particles in the liquid are heated, its temperature increases until it reaches its boiling point.
  2. This “boiling point” is the temperature at which there is enough heat energy to break the forces of attraction between the particles in a liquid.
  3. It’s important to note that this happens at a constant temperature.
  4. Once all the liquid has become a gas, the temperature increases again, as the heat energy is transferred.