CHEM10006 Lecture Notes - Lecture 1: Gibbs Free Energy, Thermodynamic Temperature, Chemical Thermodynamics
11 Jul 2018
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1st law of thermodynamics heat and work. Internal energy (u): the sum of energies for all the individual particles in a sample of matter. Enthalpy (h): function related to the heat absorbed or evolved by a chemical system. Entropy (s): a measure of the number of ways energy is distributed throughout a chemical system. Gibbs energy (g): the energy that is available to do work, g = h ts. Heat (q): a transfer of energy due to a temperature difference. Temperature (t): thermodynamic temperature is measured in kelvin (k) A system is a part of the universe (e. g. one or more chemical species). Together, the system and surroundings makes the universe. Both chemical reactions and physical change occur in one direction only under particular conditions of temperature and pressure; such a process is said to be spontaneous.
