116k views
2 votes
Describe the relationship between a compound’s stability and it’s enthalpy of formation

User CorreyS
by
4.1k points

1 Answer

3 votes

Enthalpy of formation and its stability is described below.

Step-by-step explanation:

  • The higher the entropy, the larger amount of available states. Edit: Enthalpy of formation refers to the energy involved in the formation of a substance from its elements in their most stable forms. Higher enthalpy means heat had to be absorbed to form the substance, which makes the substance a higher-energy compound.
  • Enthalpy of formation refers to the energy involved in the formation of a substance from its elements in their most stable forms. Higher enthalpy means heat had to be absorbed to form the substance, which makes the substance a higher-energy compound. High energy compounds tend to be more reactive, therefore less stable. The reverse is true for lower enthalpies.
  • The reaction enthalpy is the heat given off or taken up for the rxn, i.e., the enthalpy difference between the reactants and products. The enthalpy of formation of a compound is the enthalpy change between the elements in their standard state (reactants) and the compound (product).
User Kieran Benton
by
4.3k points