Question

What happens to the concentration of a solution which sits in an open beaker over time?

a) Increases
b) Decreases
c) Remains the same
d) There is no way to tell

Answer 1

The correct option is: b) Decreases. The happens because of a process called evaporation, in which the solvent (usually water) molecules escape into the air as vapor concentration of a solution that sits in an open beaker over time decreases due to evaporation, while the concentration of solute remains the same.

Step-by-step explanation:

The concentration of a solution that sits in an open beaker over time decreases. This happens because of a process called evaporation, in which the solvent (usually water) molecules escape into the air as vapor. However, the concentration of solute remains the same.

The correct option is: b) Decreases. The happens because of a process called evaporation, in which the solvent (usually water) molecules escape into the air as vapor concentration of a solution that sits in an open beaker over time decreases due to evaporation, while the concentration of solute remains the same.