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GCSE Combined Science · key term
A separation process in which a liquid is vaporised and its vapour is cooled and condensed so that the liquid can be collected.
Used by AQA and Edexcel
Specification 5.10.1.2 · Paper 4
Revise: Potable Water ProductionOne method is distillation. Heating salty water produces water vapour, while the dissolved salts remain behind. Cooling the vapour makes it condense into liquid water, which is collected separately.
Specification Methods of separating and purifying substances · Paper 1, Paper 2, Paper 3, Paper 4
A separation process in which water is boiled and its vapour is cooled and condensed, leaving dissolved salts behind.
Revise: The water cycle and potable waterOne method is distillation. Seawater is heated until water boils and becomes vapour. The dissolved salts remain behind.
Separation and collection of a liquid by vaporising it and then cooling its vapour so that it condenses.
A separation process in which a liquid is evaporated and its vapour is cooled and condensed, allowing the liquid to be collected.
In a distillation explanation, include both vaporisation and condensation, and identify where the dissolved salts remain.
For salt solution, choose crystallisation to collect the salt and simple distillation to collect the water.
In a distillation diagram, cooling water enters the lower end of the condenser and leaves from the upper end.
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