Hess's Law Reaction Pathway Visualizer

Build an algebraic pathway for enthalpy by reversing reactions, scaling stoichiometric coefficients, and adding step energies to find the net reaction.

HESS'S LAW

The total enthalpy change of a chemical reaction is the same regardless of the number of steps in the pathway.

CORE FORMULAS

Hess's Law

AP EXAM CONNECTION

Unit: Unit 6: Thermodynamics
Learning Objective: ENE-3.A

COMMON MISCONCEPTIONS

Forgetting to flip the sign when reversing a reaction.

KEY TAKEAWAYS

Enthalpy is a state function.

DEEP DIVE: RELATED CONCEPTS

REACTION ENERGY DIAGRAMS

Visualize how the potential energy of a chemical system changes over the course of a reaction....

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