other

• Negative vs. positive enthalpy


  -Delta H = exothermic: system → surrounding

  +Delta H = endothermic: surrounding → system
• Negative vs. positive entropy


  -Delta S = order = 1. g → l → s, 2. # of particles decrease L → R

  +Delta S = disorder = 1. s → l → g, 2. # of particles increase L → R
• Negative vs. positive Gibbs Free Energy


  -Delta G = thermodynamically favored - reaction will run as written L → R

  +Delta G = not thermodynamically favored - reaction will not run as written L → R
• Preferred states (in thermodynamics)


  • Exothermic (-delta H)

  Disorder (+delta S)

  Thermodynamically favored (-delta G)
• Delta G

  Delta G = delta H - T(delta S)
• Finding Delta X


  sum of x product - sum of x reaction
• Calculating Calorimetry


  q = m * Cp * delta T