Internal Energy: Definition & Difference from Enthalpy of Formation

[Bashyboy]

I am reading on wikipedia about internal energy and the describe it as the energy required to create a system. Ithought that this was the definition for enthalpy of formation. Was it meant by the definition of internal energy?

 

[Borek]

Ithought that this was the definition for enthalpy of formation.

Check the enthalpy definition then.