Chemical potential
Term · Chemistry · MLC-T-CHM-001957
A thermodynamic quantity that measures the change in the Gibbs free energy of a system when an infinitesimal amount of a substance is added, while keeping temperature, pressure, and the amounts of all other components constant. It represents the tendency of a substance to undergo a physical or chemical change. For a pure substance, the chemical potential is equal to its molar Gibbs free energy.
| Identifier | MLC-T-CHM-001957 |
|---|---|
| Field | Chemistry |
| Subject | Physical and Biophysical Chemistry |
| Synonyms | partial molar Gibbs energy |
| References | Green Book, 2nd ed., p. 49 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf); PAC, 1994, 66, 533. 'Standard quantities in chemical thermodynamics. Fugacities, activities and equilibrium constants for pure and mixed phases (IUPAC Recommendations 1994)' on page 535 (https://doi.org/10.1351/pac199466030533); PAC, 1996, 68, 957. 'Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)' on page 966 (https://doi.org/10.1351/pac199668040957) |
| See also | Standard chemical potential; Standard thermodynamic quantities; Thermodynamic temperature |
Record as JSON
{
"id": "MLC-T-CHM-001957",
"term": "Chemical potential",
"field": "Chemistry",
"definition": "A thermodynamic quantity that measures the change in the Gibbs free energy of a system when an infinitesimal amount of a substance is added, while keeping temperature, pressure, and the amounts of all other components constant. It represents the tendency of a substance to undergo a physical or chemical change. For a pure substance, the chemical potential is equal to its molar Gibbs free energy.",
"synonyms": [
"partial molar Gibbs energy"
],
"subject": "Physical and Biophysical Chemistry",
"see_also": [
"standard chemical potential",
"standard thermodynamic quantities",
"thermodynamic temperature"
],
"references": [
"Green Book, 2nd ed., p. 49 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)",
"PAC, 1994, 66, 533. 'Standard quantities in chemical thermodynamics. Fugacities, activities and equilibrium constants for pure and mixed phases (IUPAC Recommendations 1994)' on page 535 (https://doi.org/10.1351/pac199466030533)",
"PAC, 1996, 68, 957. 'Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)' on page 966 (https://doi.org/10.1351/pac199668040957)"
],
"url": "https://mlchart.com/terminology/chemistry/chemical-potential/"
}
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