Ch. 17 - Chemical ThermodynamicsWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

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

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)

Informaton given for G f(kJ/mol):

M2O= -6.70

M(s) = 0

O2(g) = 0

a. What is the standard change in Gibbs energy for rxn as written in forward direction?


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



c. What is the equilibrium pressure of O 2(g) over M(s) at 298K?