Classical thermodynamics, heat transfer Thermodynamic potentials and relations Concept
Thermal expansion coefficient
Summary
The thermal expansion coefficient of a substance is the relative change of its volume per unit increase of temperature at constant pressure. It is usually written or . It measures how strongly a material expands when heated, and it appears in the relation between the heat capacities and in the Joule–Thomson coefficient.
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| Tag | 2NRW3XGP3T |
|---|---|
| URI | m2://2NRW3XGP3T |
| Kind | concept |
| Writing | W0 stub |
| MSC | 80A10, 74A15 |
| Changed | 3 November 2026 |
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