The standard Gibbs free energy of formation of is zero.
(a) H₂O (l)
(b) Na (s)
(c) H₂ (g)

Name: The standard Gibbs free energy of formation of is zero. (a) H 2 O (l) (b) Na (s) (c) H 2 (g)
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Question

The standard Gibbs free energy of formation of is zero. (a) H₂O (l) (b) Na (s) (c) H₂ (g)

Quizplus · Accepted Answer

The standard Gibbs free energy of formation of a pure element in its standard state is also zero, which applies to (b) Na (s) and (c) H₂ (g). (a) H₂O (l) is not a pure element and therefore cannot have a standard Gibbs free energy of formation equal to zero.

The Standard Gibbs Free Energy of Formation of Is Zero