Answer: a. False.
b. True
c. False
Explanation:
a. When a solution is made, the enthalpy of mixing is always a positive number.
This is false. It should be noted that the nature of reaction determine the enthalpy which can either be positive or can be negative.
b. An increase in entropy favors mixing.
This is true because when molecules get randomly distributed, they mix with one another. Therefore, an increase in entropy favors mixing.
c. A solute will dissolve in a solvent if solute-solute interactions are stronger than solute-solvent interactions.
This is false. This is because the solute-solute interactions have to be weaker and not stronger.
a. When a solution is made, the enthalpy of mixing is always a positive number. FALSE
b. An increase in entropy favors mixing. TRUE
c. A solute will dissolve in a solvent if solute-solute interactions are stronger than solute-solvent interactions. FALSE
Entropy is the measure of a system's thermal energy per unit temperature that is unavailable for doing useful work
Enthalpy is the sum of the system's internal energy and the product of its pressure and volume.
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