Chemistry

Question Analysis
This question involves classifying solution formation processes by their energy changes. The main focus is on linking heat absorption to the correct thermodynamic term for solution formation.

Key Concept Explanation
Solution formation has endothermic and exothermic steps based on intermolecular force interactions.
An endothermic process absorbs heat from the surroundings, causing the solution (and container) to feel cold.
This occurs when the energy required to break solute-solute and solvent-solvent forces is greater than the energy released by forming solute-solvent forces.

Step-by-Step Solution
1. Recall the two key thermodynamic terms for energy c...