Question

What does standard free energy of formation mean? ΔG°"

A) The change in energy during a reaction at standard conditions.
B) The energy required to form one mole of a substance from its elements.
C) The energy released when a substance is formed from its elements.
D) The energy change of a reaction when concentrations are 1 M.

Answer 1

The standard free energy of formation is the energy required to form one mole of a substance from its elements.

Step-by-step explanation:

The standard free energy of formation (ΔG°f) is the free energy change that accompanies the formation of one mole of a substance from its elements in their standard states. It represents the energy required to form one mole of a substance from its elements. The standard free energy of formation is zero for elemental substances in their standard states.