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Saturated and Unsaturated Vapour Pressure

Saturated and Unsaturated Vapour Pressure What is a saturated solution? If in a water sugar solution, the amount of dissolved sugar is equal to the maximum amount that a given amount of water can dissolve at a certain temperature, then that solution is called a saturated solution. What is an unsaturated solution? If in a water sugar solution, the amount of dissolved sugar is less than that amount that a given amount of water can dissolve at a certain temperature, then that solution is called a saturated solution. What is saturated vapour? At a certain temperature in an enclosed space, if the amount of vapour present is equal to the maximum vapour capacity of that space, then that vapour is called saturated vapour. What is unsaturated vapour? At a certain temperature in an enclosed space, if the amount of vapour present is less than the maximum vapour capacity of that space, then that vapour is called unsaturated vapour. What is vapour pressure? Vapour enclosed in a container behaves

Simple distillation

If we want to obtain the solvent from a solution, then the process of distillation can be carried out. The apparatus used in this process is shown in Figure.



Water can be obtained from saltwater using this method. The solution is heated in the flask until it boils. The steam rises into the Liebig condenser, where it condenses back into the water. The salt is left behind in the flask. In hot and arid countries such as Saudi Arabia, this sort of technique is used on a much larger scale to obtain pure water for drinking. This process is carried out in a desalination plant.



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