6.10—Mean bond enthalpies from enthalpy changes of reaction

Be able to calculate mean bond enthalpies from enthalpy changes of reaction.

Use —mean bond enthalpies from enthalpy changes of reaction to connect the rule to the data and decision in the question.

This matters because —mean bond enthalpies from enthalpy changes of reaction determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply —mean bond enthalpies from enthalpy changes of reaction to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: —Mean bond enthalpies from enthalpy changes of reaction is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.