Heterogeneous Equilibria
| Also Known As | Heterogeneous equilibrium, multi-phase equilibrium, solid-gas equilibrium |
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What is Heterogeneous Equilibria?
Heterogeneous equilibria are chemical equilibria in which the reactants and products are present in more than one phase (e.g., solid, liquid, and gas). The equilibrium expression for such systems excludes the concentrations of pure solids and pure liquids, as their activities are defined as unity (their concentration is constant). This simplification is key to working with heterogeneous equilibrium expressions.
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Heterogeneous equilibria are chemical equilibria in which the reactants and products are present in more than one phase (e.g., solid, liquid, and gas). The equilibrium expression for such systems excludes the concentrations of pure solids and pure liquids, as their activities are defined as unity (their concentration is constant). This simplification is key to working with heterogeneous equilibrium expressions.
Industrial chemical processes (Haber process involves heterogeneous phases). Solubility product calculations. Understanding geological processes (carbonate dissolution). Metallurgical roasting reactions. Catalyst surface reactions. Environmental chemistry (mineral dissolution).
Safety varies by specific reaction. Gas-phase products from solid decomposition may be toxic. High-temperature heterogeneous reactions present fire/explosion hazards. Molten metal and liquid-solid interfaces present burn hazards.