Internal energy of the system (Given enthalpy,pressure and volume)
Formula
U
the internal energy of the system
H
the enthalpy of the system
p
the pressure at the boundary of the system
V
the volume of the system
Formula description
Enthalpy is a measure of the total energy of a thermodynamic system. It includes the internal energy, which is the energy required to create a system, and the amount of energy required to make room for it by displacing its environment and establishing its volume and pressure.