Enthalpy

• [1st Year's Enthalpy Videos]
• [Zumdahl Notes for Enthalpy Intro in Chapter 6]
• Calculating Enthalpy change by:
  
  • Calorimetry Equations:
    • Non-phase change (system does not change phase): deltaH = (m)(deltaT)(c), where c = specific heat capacity (H₂O is 1.00cal/(g-degC) or 4.18 J/(g-degC) ). There are variation on this equation where the m and c are changed but the importance thing is that units cancel.
      • See [1st Year's Notes for Non-phase Change Heat Calculation Notes]
    • Phase change Equation: deltaH = (m or other) (Phase change Enthalpy change)
      • Big thing here is no deltaT (since in a phase change temperature does not change) and that the Phase change Enthalpy change term has some units as (m or other).
      • There are various names for Phase change Enthalpy change include Molar Heat of Vaporization, Heat of Condensation, etc.
  • Hess' Law : [Example of Hess' Law Calculations]
  • Standard Enthalpy of Formation: [Example of Standard Enthalpy of Formation Calculations]