The summed change in this quantity for individual steps of a reaction equals the overall change in this quantity according to Hess's law.
It is held constant in throttling processes, and the Born-Haber process measures one of these associated with a crystal lattice. It is commonly written as the sum of the system's internal energy with the product of its pressure and volume, and for constant-pressure processes, the change in this quantity may be written as work. The summed change in this quantity for individual steps of a reaction equals the overall change in this quantity according to Hess's law. FTP, identify this thermodynamic state function sometimes referred to as the heat content of a system.
It is held constant in throttling processes, and the Born-Haber process measures one of these associated with a crystal lattice.
enthalpy