SEARCH Articles Figures Tables Energy The First Law of Thermodynamics Energy and the first law of thermodynamics Energy changes and first law of thermodynamics Energy first Energy thermodynamic laws Energy thermodynamics Energy, Work, and Heat The First Law of Thermodynamics First law First law of thermodynamic First law of thermodynamics, internal energy Internal Energy The First Law of Thermodynamics Thermodynamic energy Thermodynamic first law Thermodynamic law Thermodynamics laws Thermodynamics, first law