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: Predict the sign of the entropy change of the system for each of the following reactions.(a) N2 (g) + 3H2 (g)  →  2NH3 (g) (b) CaCO3(s)  →  CaO(s) + CO2(g) (c) 3C2H2(g)  →  C6H6(g) (d) Al2O3(s) + 3H2 (g)  →  2Al(s) + 3H2O(g)

Problem

Predict the sign of the entropy change of the system for each of the following reactions.
(a) N2 (g) + 3H2 (g)  →  2NH3 (g)
(b) CaCO3(s)  →  CaO(s) + CO2(g)
(c) 3C2H2(g)  →  C6H6(g)
(d) Al2O3(s) + 3H2 (g)  →  2Al(s) + 3H2O(g)