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: Calculate ∆G° rxn using the following information, assume room temperature. 2 HNO3 (aq) + NO (g) → 3 NO2 (g) + H2O (l) H°f(kJ/mol)  -207.0      91.3      33.2     -285.8 S°(J/mol•K) 146.0      210.8      240.1      70.0 -186 kJ -85.5 kJ 50.8 kJ 222 kJ -151 kJ  

Problem

Calculate ∆G° rxn using the following information, assume room temperature.

2 HNO(aq) + NO (g) → 3 NO(g) + H2O (l)

H°f(kJ/mol)  -207.0      91.3      33.2     -285.8

S°(J/molK) 146.0      210.8      240.1      70.0

  1. -186 kJ
  2. -85.5 kJ
  3. 50.8 kJ
  4. 222 kJ
  5. -151 kJ