a homogenous mixture of two or more componds whose composition may very with in certain limits is called
Answers
The concentration of a solution is defined as the amount of solute present in a given amount of the solution. A solution in which some more solute can be dissolved without increasing its temperature is called an unsaturated solution. Whereas a solution in which no more solute can be dissolved at that temperature is called a saturated solution. The maximum quantity of a solute that can be dissolved in 100 grams of a solvent at a particular temperature is known as the solubility of the solute in that solvent at that temperature.
The solubility of a solid in a liquid generally increases on increasing the temperature, and decrease on decreasing the temperature. It remains unaffected by changes in pressure. The solubility of a gas in a liquid generally decreased on increasing the temperature, and increased on decreasing the temperature. In contrast, it increase on increasing the pressure, and decrease on decreasing the pressure. For example, when water is heated, air dissolved in water comes out in the form of tiny bubbles. This shows that solubility of air (gas) in water (liquid) decrease with increase in temperature. When a soda water bottle is opened, the pressure decreased and carbon dioxide gas dissolved in water escapes producing a fizz. This shows that solubility of a gas in a liquid decreases on decreasing the pressure.