University of Edinburgh

BSL Chemistry Glossary - boiling point - definition

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Definition: A liquid reaches boiling point as it gets more heat energy put into it. As the temperature rises the particles will move faster and as it reaches boiling point the liquid will change into a gas.  Water has a specific boiling point of 100°C. You can see this happening in a kettle. First the water will start to bubble gently, then it boils, then lots of steam comes out as it reaches boiling point.