Enthalpy

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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 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) multiplied by volume (V); H = U + PV.

References

  1. G.J. Van Wylen and R.E. Sonntag (1985), Fundamentals of Classical Thermodynamics, Section 5.5 (3rd edition), New York, NY, John Wiley and Sons Inc.
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