37.)
Why increasing temperature of the solvent will speed up the dissolving process?
A. It brings more solute to crystallize.
B. It brings fewer solute molecules to the solvent.
C. It brings fresh solvent into contact with more solute.
D. It brings more solvent molecules to collide with the solute.
Answers & Comments
Answer:
D.
Explanation:
As the temperature of a solution is increased, the average kinetic energy of the molecules that make up the solution also increases. ... The increased vibration (kinetic energy) of the solute molecules causes them to be less able to hold together, and thus they dissolve more readily.