For 10 points, name this thermodynamic property used to calculate heat transfer, symbolized H.
Though not superconductivity, Heike Kamerlingh-Onnes coined its name. It remains constant when gases are forced through a pipe in the Joule-Thomson effect. For quasistatic processes at constant pressure, one can use standard state values of this quantity, independent of [*] reaction pathway, to calculate change in this quantity using Hess's law. Positive values of it denote endothermic reactions while negative ones indicate exothermic reactions. Though not heat, it has a standard ‘change of formation', and can be given as internal energy plus pressure times volume. For 10 points, name this thermodynamic property used to calculate heat transfer, symbolized H.
Though not superconductivity, Heike Kamerlingh-Onnes coined its name.
{enthalpy} [accept {H} until “{H}” is read]