Heat of Reaction

Energy in Reactions: The Fundamentals; Exothermic Reactions: Releasing Energy; Endothermic Reactions: Absorbing Energy; Energy Profile Diagrams: Visualizing Energy Changes; Enthalpy (ΔH): Quantifying Heat; Entropy (ΔS): Measuring Disorder; Gibbs Free Energy (ΔG): Predicting Spontaneity; The Gibbs-Helmholtz Equation: The Spontaneity Formula; Interpreting Spontaneity: What ΔG Tells Us; Factors Affecting Spontaneity: ΔH, ΔS, and Temperature; Standard Enthalpy of Formation: A Reference Point; Hess's Law Principle: Path Independence; Calculating Heat of Reaction: Putting it all Together; Calculation Example: A Step-by-Step Walkthrough; Reflect and Apply: Critical Thinking and Discussion