Pressure is directly proportional to solubility; an increase in pressure also increases solubility. Conversely, a decrease in pressure also reduces solubility.Know More
In an equilibrium state, solubility pertains to the quantitative measurement of the maximum amount of solute that can be dissolved in a particular amount of solvent. The term "solute" refers to the particle or substance that is dissolved, while "solvent" refers to the component that does the dissolving. The solubility of a material is its concentration in a solution that cannot further dissolve an additional amount of solute.
Several factors affect solubility, including solute and solvent interactions, common -ion effect, pressure and temperature. Pressure does not significantly influence the solubility of solids and liquids. Instead, its effects only become significant on the solubility of gaseous substances.
The relationship between pressure and solubility can be summarized by combining Le Chatelier's principle and Henry's Law. Le Chatelier's principle postulates that when a chemically balanced system is subjected to stress, in this case pressure, the system will change to reduce the stress. Henry's Law states that under constant temperature, the solubility of a gas is correlated to its partial pressure. Henry's Law is represented in the equation, p = kh c, where "p" denotes partial pressure, "kh" indicates Henry's law constant and "c" is the concentration of the dissolved gas. The formula demonstrates the direct relationship of pressure to concentration, as well as solubility. As pressure increases, both the concentration and solubility also increase.Learn more about Chemistry
Temperature, pressure and substance composition can impact the solubility of a substance. Reactions between solutes and solvents can decrease the solubility of a substance as well.Full Answer >
The effect that an increase in temperature will have on the solubility of a solid is to increase its solubility if the reaction between the solute and the solvent is endothermic. If the reaction between the solute and solvent is exothermic, however, an increase in temperature will decrease the solubility of the solid. Endothermic reactions absorb heat and exothermic reactions give off heat.Full Answer >
An increase in atmospheric pressure raises the boiling point of a liquid by raising the vapor pressure of the water above the liquid. This increases the amount of thermal energy needed to increase the vapor pressure of the water to match, raising the boiling point. Conversely, a reduction in atmospheric pressure, such as that caused by an increase in altitude, lowers the boiling point proportionately.Full Answer >
Energy is directly proportional to frequency. In optoelectronics, it is said that the energy of a photon is directly proportional to its frequency. This equation is written as "E = hf". In addition, the energy of a wave is also directly proportional to its amplitude squared.Full Answer >