How can the speed of solvent molecules be slowed down?

Question

A.
by increasing the temperature
B.
by increasing the surface area of the solute
C.
by increasing the pressure
D.
by decreasing the temperature
E.
by decreasing the surface area of the solute

Answer 1

The speed of solvent molecules can be slowed down by:

D. by decreasing the temperature

Lowering the temperature reduces the kinetic energy of the molecules, which subsequently slows them down. Increasing the temperature (option A) would increase the speed of the solvent molecules, while options B, C, and E are not directly related to the speed of the solvent molecules.