A solution is formed when the solute uniformly disperses throughout (or dissolve

Question

A solution is formed when the solute uniformly disperses throughout (or dissolves in) the solvent. The process can be described by three steps:

1. separation of solvent-solvent particles (AKA expanding the solvent),

2.separation of solute-solute particles (AKA expanding the solute), and

3. formation of solute-solvent interactions.

Classify the steps involved in the formation of a solution as being endothermic or exothermic.

A. Step 1 is exothermic, Step 2 is exothermic, Step 3 is endothermic

B. Step 1 is endothermic, Step 2 is endothermic, Step 3 is exothermic

C. Step 1 is endothermic, Step 2 is exothermic, Step 3 is exothermic

D. Step 1 is exothermic, Step 2 is endothermic, Step 3 is exothermic

Explanation / Answer

1) Seperation of solvent-solvent particles, the distance is increasing and hence the overall energy will be going to be reduced, hence the process will be endothermic in nature

2) Seperation of solute-solute particles will also be endothermic in nature as explained above

3) Formation of solute-solvent interactions will be going to happen with the release of energy, hence the reaction will be exothermic in nature

Hence the correct answer is Option B

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.