Dissolution Rate

Look at the diagram. In this diagram, the blue area represents

• the solute

• the solvent

• the solution

Look at the diagram. In this diagram, the red dots represent

• the solute

• the solvent

• the solution

Stirring a solution makes solid dissolve faster.

• True

• False

Heating a solution makes solutes ___________ faster.

• dissolve

• to become solid

Tags

NGSS.MS-PS1-4

Heating makes solid dissolves faster because heat speeds up the particles and allows to spread through the solution more easily.

• True

• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Smaller grains dissolve faster than larger grains.

• True

• False

The grain size of a solute do not affects the rate at which it will dissolve in a liquid.

• True

• False

Which factor does NOT affect the dissolution rate of a solute in a solvent?

• Temperature

• Stirring

• Color of the solute

• Particle size

Increasing the surface area of a solute will generally _______ the dissolution rate.

• Increase

• Decrease

• Have no effect on

• Reverse

In an experiment, a student finds that sugar dissolves faster in hot water than in cold water. This is because:

• Hot water has more energy to break sugar molecules apart.

• Cold water has more energy to break sugar molecules apart.

• Sugar molecules are smaller in hot water.

• Sugar molecules are larger in cold water.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4