The effect of temperature on the solubility of a gas in a liquid: According to Charle's law, volume of a given mass of a gas increases with increase in temperature. The solubility of a gas in a liquid is markedly affected by temperature. If S is the solubility of the gas (unit M or mol/L) and P is the pressure of a gas (unit atm), then S ∝ P S = K P Here K is the Henry's law constant with units M/atm. This means that warmer surface water requires less dissolved oxygen to reach 100% air saturation than does deeper, cooler water. A few, such as cerium(III) sulfate, become less soluble in water as temperature increases. The solubility of oxygen decreases as temperature increases. According to Charles’ law, volume of a given mass of a gas increases with increase in temperature. Effect of Temperature on Solubility. The aqueous solubilities of pentanoic and hexanoic acids were measured between 298.15 and 333.15 K at intervals of 5.00 K. Nonlinear dependences were found for the variation of solubility with temperature. Usually, the solubility decreases with the increase of temperature. This is also an indication of the effect of temperature on the solubility of CO 2. Some solutes exhibit solubility that is fairly independent of temperature. Many salts show a large increase in solubility with temperature. When rivers and lakes are warmer, because the solubility of oxygen (O 2) is reduced, there generally is less oxygen available for fish and other aquatic animals. When solids dissolve in a liquid heat is generally absorbed, i.e., dissolution of a solid in a liquid is an endothermic process. Effect of temperature on Dissolved Oxygen solubility . It can be readily shown that the variation of solubility with temperature follows a … Effect of temperature on solubility of a gas in a liquid: 1. Solubility is defined as the upper limit of solute that can be dissolved in a given amount of solvent at equilibrium. Solid Solubility and Temperature. The temperature dependences of the solubility of the acids in water are described by nonlinear van’t Hoff plots. Effect of Temperature on Solubility. The solubility of such solids increases with the increase of temperature in accord with Le Chatelier principle. Answer . The solubility of a given solute in a given solvent typically depends on temperature. This can be seen from the data in below table. The temperature effects on the solubilities of other gases are similar. In such an equilibrium, Le Chatelier's principle can be used to explain most of the main factors that affect solubility.