Question

Crystals are made using supersaturated solutions of solids in water. These solutions hold more of the solute than they would at room temperature. How are these solutions made? (1 point)
Responses

The water would need to be chilled to a lower temperature, which would give molecules and ions more kinetic energy, increasing solubility.
The water would need to be chilled to a lower temperature, which would give molecules and ions more kinetic energy, increasing solubility.

The water would need to be heated to a higher temperature, which would take kinetic energy away from molecules and ions, increasing solubility.
The water would need to be heated to a higher temperature, which would take kinetic energy away from molecules and ions, increasing solubility.

The water would need to be chilled to a lower temperature, which would take kinetic energy away from molecules and ions, increasing solubility.
The water would need to be chilled to a lower temperature, which would take kinetic energy away from molecules and ions, increasing solubility.

The water would need to be heated to a higher temperature, which would give molecules and ions more kinetic energy, increasing solubility.

1 answer

To create a supersaturated solution, the water would need to be heated to a higher temperature, which gives molecules and ions more kinetic energy, increasing solubility. Once the solution is saturated with the solute at this higher temperature, it can then be allowed to cool slowly. Upon cooling, the solute remains dissolved despite the lower temperature that typically would not allow such a concentration, resulting in a supersaturated solution. Therefore, the correct option is:

"The water would need to be heated to a higher temperature, which would give molecules and ions more kinetic energy, increasing solubility."