sapling leaming Consider the decomposition of a metal oxide to its elements, whe

Question

sapling leaming Consider the decomposition of a metal oxide to its elements, where M represents a generic metal. Substance G M20(s) |-8.00 M(S) Substance (kJmol) What is the standard change in Gibbs energy for the reaction, as witten, in the forward direction? Number k.J/ mol What is the equilibrium constant of this reaction, as written, in the forward direction at 298 K? Number What is the equilibrium pressure of O-dg) over M(s) at 298 K2 Number atm fled Check AnswerNext O Previous Gne Up & Vww Souder.

Explanation / Answer

M2O <--> 2M + 1/2O2

Grxn = Gprod - Greact = 2*0-1/2*0 - (-8.9) = 8.9 kJ/mol

b)

K = ?

G° = -RT*lnK

K = G/-RT = exp(-(8900/8.314/298) ) = 0.027536

c)

PO2 ?

K = [O2]^1/2

Kp = Kc*(RT)^dn

Kp = (0.027536)(0.082*298)^0.5 = 0.1361

Kp = PO2^1/2

0.1361 = PO^1/2

PO2 = 0.1361^2= 0.0185232 atm

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

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