Spontaneous Process
| Formula / Notation | ΔG < 0 |
|---|---|
| Also Known As | Spontaneous reaction, thermodynamically favorable, exergonic reaction (ΔG<0), natural process |
What is Spontaneous Process?
A spontaneous process is a process that occurs naturally without continuous external intervention under a given set of conditions. Spontaneity is governed by the Gibbs free energy: ΔG < 0 for spontaneous processes at constant T and P. A spontaneous process is not necessarily fast — diamond converting to graphite is thermodynamically spontaneous but kinetically very slow. Spontaneity depends on temperature, pressure, and concentrations.
Formula & Notation
Other Names / Synonyms: Spontaneous reaction, thermodynamically favorable, exergonic reaction (ΔG<0), natural process
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
A spontaneous process is a process that occurs naturally without continuous external intervention under a given set of conditions. Spontaneity is governed by the Gibbs free energy: ΔG < 0 for spontaneous processes at constant T and P. A spontaneous process is not necessarily fast — diamond converting to graphite is thermodynamically spontaneous but kinetically very slow. Spontaneity depends on temperature, pressure, and concentrations.
Predicting reaction direction. Determining equilibrium conditions. Understanding why reactions proceed. Electrochemical cell spontaneity. Biological energy coupling (ATP hydrolysis drives non-spontaneous reactions). Industrial process feasibility assessment.
Conceptual classification — no direct safety concerns. Some spontaneous reactions are highly exothermic and potentially hazardous (combustion, acid-metal reactions). Thermodynamic spontaneity does not imply safe!
The formula or notation for Spontaneous Process is: ΔG < 0