CHEM 113 Study Guide - Midterm Guide: Gibbs Free Energy, Thermodynamic Cycle, Thermodynamics

228 views5 pages
13 Sep 2016
School
Department
Course

Document Summary

The system experiences and increase in entropy: srxn > 0. The process is exothermic: hrxn < 0 energy (g) relates enthalpy, entropy, and temperature for a process: G = h- ts or g = h- t s. Go rxn= nprod. go f. prod. - nreact. go f. react. i. ii. i. ii. Four laws of thermodynamics a. b. c. d. Zeroth law of thermodynamics if two thermodynamic systems are each in thermal equilibrium with a third, then they are in thermal equilibrium with each other. First law of thermodynamics energy can neither be created nor destroyed. In any process, the total energy of the universe remains the same. For a thermodynamic cycle the net heat supplied to the system equals the net work done by the system. Second law of thermodynamics the entropy of an isolated system not in equilibrium will tend to increase over time, approaching a maximum value at equilibrium.