Entropy & Spontaneity Predictor

Interactive ΔG = ΔH − TΔS graph with adjustable enthalpy, entropy, and temperature. Visualizes Gibbs free energy vs temperature with spontaneous/non-spontaneous shading. Automatically determines crossover temperature and classifies into 4 ΔH/ΔS sign combinations with detailed explanations.

ENTROPY AND SPONTANEITY

Gibbs Free Energy determines process spontaneity based on enthalpy and entropy.

CORE FORMULAS

Gibbs Free Energy

AP EXAM CONNECTION

Unit: Unit 9: Applications of Thermodynamics
Learning Objective: ENE-4.A

COMMON MISCONCEPTIONS

Thinking spontaneous reactions are fast.

KEY TAKEAWAYS

Thermodynamically favored reactions have negative Gibbs energy.

DEEP DIVE: RELATED CONCEPTS

ELECTROCHEMICAL CELLS

Galvanic (voltaic) cells use a spontaneous reaction to generate electrical energy. Electrolytic cell...

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