True or False: a) A process is spontaneous if Stotal > 0. b) The 2nd Law of Ther

Question

True or False: a) A process is spontaneous if Stotal > 0. b) The 2nd Law of Thermodynamics states: The entropy of a pure, perfect crystal at 0 Kelvin is 0. c) For A(g) + B(g) --> D(g) + E(g), if H°rxn < 0 and S°rxn > 0, the reaction is spontaneous regardless of temperature. d) For A(g) + B(g) --> D(g) + E(g), if H°rxn > 0 and S°rxn < 0, it will be possible to find a temperature above which he reaction will be spontaneous. e) For A(g) + B(g) --> D(g) + E(g), if G°rxn > 0 at 298K and partial pressures of 1 bar, the reaction is spontaneous as written.

Explanation / Answer

ANSWER

(a) False. Becaue G determines the spontaneity of a reaction.

(b) False. It is 3rd law of thermodynamic.

(c) True. G = H -TS

if G is negative reaction will be spontaneous. It will be negative if H <0 and S >0

(d) True. Reason shown above.

(e) False.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

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