Please enable JavaScript.
Coggle requires JavaScript to display documents.
Enthalpy (Breaking and making bonds (Stronger bonds release m,ore energy…
Enthalpy
-
-
General basic
Enthalpy of a reaction is the amount of energy transferred in a reaction. These reactions can be endothermic, more heat energy is taken in, or exothermic, moire heat energy is given out.
Bond enthalpy - the energy needed to break a bond. Bond enthalpies have different values which all depend on which atoms are bonded together and what type of bond is formed.
The enthalpy change of a reaction is basically just the energy transferred, at a constant pressure. Repeated for effect.
The enthalpy change is basically just the amount of energy transferred in a reaction, which is at a constant pressure..
Mean Bond Enthalpies
You would add the values for the first and second bond enthalpies together and divide them by two to get the MEAN BOND ENTHALPY.
Water has got two O=H bonds. The second requires a lower bond enthalpy because of the extra electron pair repulsion.
Mean bond enthalpy - The average amount of energy needed to break a covalent bond in a variety of compounds.