Extent of Reactions

  1. Calculate the heat of combustion of liquid isopropyl alcohol from its standard heat of formation.
  2. For the dissolution of AgCl:

    AgCl(s) → Ag+(aq) + Cl-(aq)
    ΔH° = 112 kJ/mol and ΔS° = 34 J/K-mol.
    If 1.0 mole of AgCl is added to 1.0 L of water at 70°C, will most of the 1.0 mole dissolve or remain as a solid?
    Show your work.

  3. Calculate ΔH°, ΔS°, and ΔG° at 25 °C for the following reactions:
    1. combustion of methane
    2. formation of gaseous HCl from its elements
    3. formation of H3SiCl from its elements [you will need to use bond energies and estimate ΔS°].