Question

What is the effect of heat on solubility of a substance?

Answer 1

Answer:

For many solids dissolved in liquid water, solubility increases with temperature. The increase in kinetic energy that comes with higher temperatures allow the solvent molecules to more effectively break apart the solute molecules

Answer 2

Explanation:

For many solids dissolved in liquid water, the solubility increases with temperature.

The increase in kinetic energy that comes with higher temperatures allows the solvent molecules to more effectively break apart the solute molecules that are held together by intermolecular attractions.

The increased vibration (kinetic energy) of the solute molecules causes them to dissolve more readily because they are less able to hold together.

Solid Solubility and Temperature.

The solubility of a given solute in a given solvent typically depends on temperature. Many salts show a large increase in solubility with temperature. Some solutes exhibit solubility that is fairly independent of temperature. A few, such as cerium(III) sulfate, become less soluble in water as temperature increases. This temperature dependence is sometimes referred to as retrograde or inverse solubility, and exists when a salt’s dissolution is exothermic; this can be explained because, according to Le Chatelier’s principle, extra heat will cause the equilibrium for an exothermic process to shift towards the reactants.

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