Which one of the following statements is true? A) Labile is a term that refers to the thermodynamic tendency of a substance to decompose. B) Spontaneous reactions always have $\Delta$G_r $\circ$ 0. C) Spontaneous reactions always have $\Delta$H_r $\circ$ 0. E) A thermodynamically stable compound is a compound with a negative standard free energy of formation.

Question

Which one of the following statements is true? A) Labile is a term that refers to the thermodynamic tendency of a substance to decompose. B) Spontaneous reactions always have $\Delta$G_r $\circ$ > 0. C) Spontaneous reactions always have $\Delta$H_r $\circ$ < 0. D) Spontaneous reactions always have $\Delta$S_r $\circ$ > 0. E) A thermodynamically stable compound is a compound with a negative standard free energy of formation.

Quizplus · Accepted Answer

A thermodynamically stable compound indeed has a negative standard free energy of formation ($\Delta G_f^\circ < 0$), indicating that its formation from its elements in their standard states is spontaneous under standard conditions.

Which One of the Following Statements Is True? A) Labile Δ\DeltaΔ

Which One of the Following Statements Is True?
A) Labile $\Delta$