If you dissolved a lot of salt in some water in a large flat dish and put the dish in bright sunlight on a hot day, what would be left in the dish after a long time?
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dry salt
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If we dissolve a lot of salt in some water in a large flat dish and put the dish in bright sunlight on a hot day, the salt residue would be left in the dish after a long time by the process of evaporation.
The process of change of water into vapor on heating is called evaporation. An increase in temperature increases the rate of evaporation. It is one of the methods of separation of a homogenous mixture such as a mixture of salt and water.
When the salt is mixed with water, a homogenous mixture of salt and water is formed. The mixture when kept in bright sunlight gets heated.
As a result, the water in the mixture evaporates and rises up while the salt remains behind.
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