Answer:
<h2><u>Crystallization of solids</u></h2>
Explanation:
<h3>What is Crystallization?</h3>
Crystallization is a <u>technique</u> used for the purification of substances. A separation <u>technique</u> to <u>separate</u> solids from a solution.
Crystallization can be defined as <u><em>the </em></u><u><em>process </em></u><u><em>through which the </em></u><u><em>atoms/molecules</em></u><u><em> of a </em></u><u><em>substance </em></u><u><em>arrange themselves in a</em></u><u><em> well-defined</em></u><u><em> </em></u><u><em>three-dimensional</em></u><u><em> </em></u><u><em>lattice</em></u><u><em> and consequently, minimize the overall </em></u><u><em>energy </em></u><u><em>of the system.</em></u> When a substance is subjected to crystallization, its atoms or molecules <u>bind together</u> through <u>well-defined angles.</u>
On adding a solid substance in a liquid and stirring it, the solid <u>dissolves</u> in the fluid. But when adding more and more solid to the liquid, a <u>point</u> comes after which no more solid <u>dissolves</u> in the liquid. This point is called a <u>saturation point</u> and the fluid is called a <u>saturation solution</u>.
<u>Key words and phrases:</u>
saturation, crystallization, solids, liquids, substance, atoms, molecules, saturation solution, saturation point, purification, separation, solution, dissolve
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