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

Question

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

Quizplus · Accepted Answer

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

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

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