Enthalpy and Energy
- An exothermic reaction is where energy is released from chemical bonds.
- An endothermic is where energy is taken in to form the chemical bonds.
- Enthalpy is the heat energy content of a compound at constant pressure.
- ΔH represents the Change in Enthalpy
- An exothermic reaction will have a negative Enthalpy Change, an endothermic will have a positive Enthalpy change.
- The standard conditions for measuring Enthalpy Change are: 298K, 100kPa and the values are giver per mole.
- ΔH = H products - H reactants
- Calorimetry is the measuring of heat.
- A catalyst doesn't affect the ΔH of a reaction.
- Heat energy required (Q) for a recation to occur is often calculated
- Q=MCΔT: M…