# Problem: Consider the decomposition of a metal oxide to its elements, where M represents a generic metal.M2O3(s) → 2M(s) + 3/2 O2(g)Info given for Gf(kJ/mol):M2O3= -6.70M(s)=0O2(g)= 0a) What is the standard change in Gibbs energy for rxn as written in forward direction? (kJ/mol)  b) What is the equilibrium constant (K) of this rxn, as written in forward direction at 298K?  c) What is the equilibrium pressure of O2(g) over M(s) at 298K? (atm)

###### FREE Expert Solution
99% (223 ratings)
###### Problem Details

Consider the decomposition of a metal oxide to its elements, where M represents a generic metal.

M2O3(s) → 2M(s) + 3/2 O2(g)

Info given for Gf(kJ/mol):
M2O3= -6.70
M(s)=0
O2(g)= 0

a) What is the standard change in Gibbs energy for rxn as written in forward direction? (kJ/mol)

b) What is the equilibrium constant (K) of this rxn, as written in forward direction at 298K?

c) What is the equilibrium pressure of O2(g) over M(s) at 298K? (atm)

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Gibbs Free Energy concept. You can view video lessons to learn Gibbs Free Energy. Or if you need more Gibbs Free Energy practice, you can also practice Gibbs Free Energy practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofConsider the decomposition of a metal oxide to its elements,...as high difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Dasha took 9 minutes and 16 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Sitz's class at TEXAS.