Fundamentals of Molecular Interactions and Phase Behavior

📋 Course Outline

1. Adhesion and Cohesion
2. Colloidal Systems
3. Ligands and Complexes
4. Diffusion Processes
5. Phases and Boundaries
6. Gibbs Rule of Phases
7. Critical and Vaporization
8. Colligative Properties
9. Gas Laws and Properties
10. Reaction Kinetics and Catalysis
11. Chemical Equilibrium and Le Châtelier
12. Thermodynamic Systems

📖 1. Adhesion and Cohesion

🔑 Key Concepts & Definitions

• Adhesion: The force of attraction between molecules of different substances at their interface, e.g., glue sticking to paper.
• Cohesion: The force of attraction between molecules of the same substance, maintaining its integrity, e.g., water molecules sticking together.
• Colloidal System: A heterogeneous mixture where one substance is dispersed evenly within another, with particles larger than molecules but small enough to remain suspended.
• Ligand: A molecule, ion, or atom that binds to a central atom to form a chemical complex.
• Diffusion: The spontaneous movement of molecules from an area of higher concentration to an area of lower concentration, occurring in gases, liquids, and solids.
• Phase Boundary: A thin interface layer separating two different phases in a system, e.g., liquid-liquid interface.

📝 Essential Points