CHE1143_12MW_Abierta

Cell Classification00:00:36

Explanation of galvanic cells, which are spontaneous and generate electrical energy, versus electrolytic cells, which are non-spontaneous and require electrical energy to drive reactions. The session highlights key industrial applications for both, such as batteries for galvanic systems and electroplating for electrolytic systems.

Half-Cell Reactions00:02:30

Detailed look at oxidation and reduction at the microscopic level. Oxidation occurs at the anode, while reduction occurs at the cathode (anox/redcat mnemonic). Includes a three-step method for balancing net ionic equations.

Standard Cell Potential00:04:11

Covers thermodynamics conditions (25°C, 1M concentration, 1 atm pressure) and the E-cell formula (E_cathode - E_anode). A step-by-step calculation using the Daniel cell demonstrates how a positive E-cell value confirms spontaneity.

Real-World Applications00:06:06

Practical examples of electrochemical principles, including biomedical sensors like glucose meters, environmental water quality monitoring, neuronal action potentials, and industrial metallurgy for metal extraction.