Which of the following will increase the rate at which a solute dissolves? (Select all that apply.)

Question

a
decreasing surface area
b
increasing temperature
c
increasing surface area
d
stirring
e
decreasing temperature

Answer 1

To increase the rate at which a solute dissolves, the following factors will be effective:

b. increasing temperature - Higher temperatures generally increase the solubility and kinetic energy, allowing solute particles to dissolve more quickly.

c. increasing surface area - Increasing the surface area of the solute (for example, by crushing it into smaller pieces) allows more solute particles to come into contact with the solvent, facilitating faster dissolution.

d. stirring - Stirring or agitating the solution helps to disperse the solute particles throughout the solvent, increasing the rate of dissolution.

So, the correct selections are:

• b (increasing temperature)
• c (increasing surface area)
• d (stirring)

The other options will not increase the rate of dissolution:

• a (decreasing surface area) will slow down the rate of dissolution.
• e (decreasing temperature) will also slow down the dissolution process.