name the factor the which the solubility of solute depends ?
Answers
Answer:
The extent of dissolution of a substance (solute) depends upon the following factors
1) Nature of a solute : A solute may be crystallime, amorphous, 1onic or covalent. Hence accordingly its tendency to dissolve changes. The substances having similar intermolecular forces tend to dissolve in each other.
(2) Nature of solvents : Solvents are classified as polar and nonpolar. Polar solutes dissolve in polar sOlvents. For example, 10nic compounds dissolve in polar solvent like water. A solvent other than water is called a nonaqueous solvent. For example, C_6H_6 CCl_4, etc. Solutions in thesc solvents arc callcd nonaqucous solutions. the solvent may be a gas, a liquid or a solid.
3) Amount of a solvent : More amount of a solvent, will dissolve more quantity of the solute.
4) Temperature : Depending on the nature of a solvent and a solute the solubility changes with temperature. The effect depends on the heat of solution, hydration energy, etc. Generally as the temperature increases, solubility of solid increases and that of gases decreases.
5) Pressure
Pressure has no cffect on the solubilities of solids and liquids since they are incompressible.
(i) The efect of pressure is important only for solutions which involve gases as solutes. With he increase in presSure and decrease in temperature, the solubility of gases increases.