Energetics

• What is the definition of Standard Enthalpy of Combustion?

  when 1 mol of a compound completely burned in oxygen under standard conditions; all reactants and products being in their standard state
• What is the definition of the term Average Bond Enthalpy?

  enthalpy needed break 1 mol of bonds; number of molecules containing that bond to produce gaseous atoms
• What is the defintion of the term Standard Molar Enthalpy of Formation?

  when 1 mol of a compound is formed from its constituent elements in the standard state
• What is the definition of Hess's law?

  enthalpy change for a reaction is independent of the route
• What is the definition of Hess's Law?

  enthalpy change a reaction is independent of the route
• What is the definition of the term Mean Bond Enthalpy?

  enthalpy required to break a covalent bond average over a wide range of compounds
• What is the equation for Enthalpy Change?


  q = mcΔT