Enthalpy: Difference between revisions
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Enthalpy is the heat or energy content stored in a system. The chemical symbol representing enthalpy is H. Enthalpy can be lost or gained in a system, dependant on whether the overall reaction is [[Exothermic|exothermic]] or [[Endothermic|endothermic]] <ref>G.J. Van Wylen and R.E. Sonntag (1985), Fundamentals of Classical Thermodynamics, Section 5.5 (3rd edition), New York, NY, John Wiley &amp; Sons Inc.</ref>. | Enthalpy is the heat or energy content stored in a system. The chemical symbol representing enthalpy is H. Enthalpy can be lost or gained in a system, dependant on whether the overall reaction is [[Exothermic|exothermic]] or [[Endothermic|endothermic]] <ref>G.J. Van Wylen and R.E. Sonntag (1985), Fundamentals of Classical Thermodynamics, Section 5.5 (3rd edition), New York, NY, John Wiley &amp;amp; Sons Inc.</ref>. The International System of Units of enthalpy is joules. Enthalpy (H) is equal to the internal energy (U) plus the sum of the pressure (P) timed by volume (V); H = U + PV. | ||
=== References === | === References === | ||
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Revision as of 13:13, 17 October 2014
Enthalpy is the heat or energy content stored in a system. The chemical symbol representing enthalpy is H. Enthalpy can be lost or gained in a system, dependant on whether the overall reaction is exothermic or endothermic [1]. The International System of Units of enthalpy is joules. Enthalpy (H) is equal to the internal energy (U) plus the sum of the pressure (P) timed by volume (V); H = U + PV.
References
- ↑ G.J. Van Wylen and R.E. Sonntag (1985), Fundamentals of Classical Thermodynamics, Section 5.5 (3rd edition), New York, NY, John Wiley &amp; Sons Inc.