The sign of the change in enthalpy (ΔH) depends on whether the dissolution process is exothermic or endothermic. If the dissolution process releases heat to the surroundings solution.
it is exothermic and ΔH is negative. enthalpy If the dissolution process absorbs heat from the surroundings, it is endothermic and ΔH is positive. The sign of ΔH is determined by the specific chemical reaction and the energy changes involved. Regarding the value of Ksp (solubility product constant) in the hot solution, it would generally increase. According to Le Chatelier's principle, when the temperature is increased, the equilibrium shifts in the direction that absorbs heat, which in this case is the dissolution of the solute. By increasing the temperature, the solubility of the compound typically increases, resulting in an increase in the value of Ksp. However, it is important to note that the effect of temperature on Ksp can vary depending on the specific solute and its dissolution process.