What happens to the process of dissolving if heat is decreased?

Answer 1

First of all, "heat is decreased" means the container in which you are trying to dissolve something is being cooled down. When molecules heat up they gain energy and move faster. If you are trying to dissolve sugar in water, for instance, heating up the water will cause its molecules to move faster and collide with the sugar crystals, which have many molecules in them, more often. This means the crystals break up faster, and the sugar dissolves faster. Conversely, if "heat is decreased" the water molecules slow down and don't have as much energy. They don't collide with the sugar crystals as often and the sugar doesn't break up as fast. End result: decreasing the heat means dissolving takes longer. Increasing means dissolving is faster.

Answer 2

Elements tend to fall out of solution if cooled down quickly. If cooled down gradually, some over saturated solutions (also known as super saturated) may stay in solution until an outside agent effects it causing the elements to fall out of solution. That is how rock candy is made.

Answer 3

If the heat is decreased, the dissolving process generally slows down as heat typically speeds up the movement of particles in a solvent, aiding in dissolving the solute. However, depending on the specific substances involved, decreasing the temperature could also cause a decrease in solubility which would result in the opposite effect.

Answer 4

when we dissolve a substance then first of all there may occur physical change like shape,colour,temperature etc. these changes are called physical changes.