Question

The same amount of substance was added to four beakers of water. The treatments were placed in the chart.


Which best describes the solutions?

A: Solutions X and Z have greater solubility than solutions W and Y.
B: Solutions Y and Z have greater solubility than solutions W and X.
C: Solutions W and Y have greater solubility than solutions X and Z.
D: Solutions W and Z have greater solubility than solutions X and Y.

Answer 1

Answer:

C: Solutions W and Y have greater solubility than solutions X and Z.

Explanation:

Temperature and pressure affect the solubility of a solution as follows:

- the higher the pressure, the greater the solubility (because more pressure means more collisions between the molecules, so this improves the solubility)

- the higher the temperature, the greater the solubility (because higher temperature means higher kinetic energy of the molecules, so more collisions, and so this improves the solubility)

Therefore, considering these two factors, the solutions with greater solubility must be W (which has high pressure) and Y (which has high temperature).

Answer 2

Answer:

C is the correct answer!

Explanation:

Took on edg 2020 <3