The spontaneity of a reaction depends both on the enthalpy change, Delta H, and

Question

The spontaneity of a reaction depends both on the enthalpy change, Delta H, and entropy change. Delta S. Reactions that release energy produce more stable products, and the universe tends toward disorder. Thus, an exothermic reaction with a positive entropy change will always be spontaneous. Mathematically, this relationship can be represented as where Delta G is the change in Gibbs free energy and T is the Kelvin temperature. If Delta G is negative, then the reaction is spontaneous. If Delta G is positive, then the reaction is nonspontaneous as written but spontaneous in the reverse direction. What can be said about an endothermic reaction with a negative entropy change? What can be said about an exothermic reaction with a negative entropy change?

Explanation / Answer

a,spontaneous in reverse direction at all temperature

b,spontaneous at low temperatures.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.