Answer:
The correct answers is A) solvent.
Explanation:
Solubility is the ability of a substance to dissolve in another called solvent. The solubility of a solute in a given solvent mainly depends on the temperature. For many solids dissolved in liquid water, solubility increases with temperature up to 100 ° C.
In the liquid water at high temperatures the solubility of the ionic solutes tends to decrease due to the change in the properties and structure of the liquid water.
Gaseous solutes show a more complex behavior with temperature. As the temperature rises, the gases generally become less soluble in water but more soluble in organic solvents.
Hence, if we vary the temperature of the solvent we can check the effects on solubility of a solute.
