(Note that some of these are the same problems as found in the section headed Enthalpies of Atom Combination. However in this section all problems are worked using Enthalpies of Formation.)
-For which of the following substances is the enthalpy of formation, $\Delta$ H_f S1° , equal to zero?

Question

(Note that some of these are the same problems as found in the section headed Enthalpies of Atom Combination. However in this section all problems are worked using Enthalpies of Formation.)
-For which of the following substances is the enthalpy of formation,

\Delta

H_f S1° , equal to zero?

Quizplus · Accepted Answer

The enthalpy of formation is zero for elements in their standard states. F₂(g) is in its standard state.

(Note That Some of These Are the Same Problems as Found