Answered

All of the following statements are correct EXCEPT

A. Dissolving a solid in water is usually an exothermic process.
B. If a precipitate forms when a solution is cooled, the solution is supersaturated.
C. Solubility decreases with increasing molar mass.
D. When an equilibrium is established between molecules in a solid and a solution, the solution is said to be saturated.
E. The solubility of a gas in water decreases as the water temperature increases.



Answer :

GinnyAnswer

Final answer:

In a saturated solution, solute dissolving rate equals crystallization rate, establishing dynamic equilibrium.


Explanation:

The correct statement is:

  1. d) when an equilibrium is established between molecules in a solid and a solution, the solution is said to be saturated.

Explanation:

In a saturated solution, the rate of solute dissolving is equal to the rate of solute crystallizing from the solution. This maintains a dynamic equilibrium between the solid solute and the dissolved solute. The other statements are accurate about factors affecting solubility, precipitation, and temperature dependence of solubility for gases.


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