Encyclopedia of Astrobiology

Living Edition
| Editors: Muriel Gargaud, William M. Irvine, Ricardo Amils, Henderson James Cleaves, Daniele Pinti, José Cernicharo Quintanilla, Michel Viso


  • Jacques Reisse
Living reference work entry
DOI: https://doi.org/10.1007/978-3-642-27833-4_521-3


The enthalpy change is the heat produced or absorbed during a chemical or physical transformation taking place at constant pressure. The thermodynamic definition of enthalpy is H = U + PV, where H stands for enthalpy, U for internal energy, P for pressure, and V for volume.

See Also


Free Energy Bioorganic Chemistry Internal Energy Constant Pressure Enthalpy Change 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Université Libre de BruxellesBrusselsBelgium