7: The First and Second Laws of Thermodynamics Last updated Jun 23, 2019 Save as PDF 6.8: Forces Between Molecules 7.1: The First Law of Thermodynamics, and Internal Energy Page ID7255 Jeremy TatumUniversity of Victoria ( \newcommand{\kernel}{\mathrm{null}\,}\) 7.1: The First Law of Thermodynamics, and Internal Energy7.2: Work7.3: Entropy7.4: The Second Law of Thermodynamics