Ch.13 - Chemical KineticsWorksheetSee 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: The Ostwald process for the commercial production of nitric acid from ammonia and oxygen involves the following steps:4NH3 (g) + 5O2 (g) → 4NO (g) + 6 H2O (g)2NO(g) + O2 (g) → 2NO2 (g)3NO2 (g) + H2O (

Problem

The Ostwald process for the commercial production of nitric acid from ammonia and oxygen involves the following steps:

4NH3 (g) + 5O(g) → 4NO (g) + 6 H2O (g)

2NO(g) + O2 (g) → 2NO2 (g)

3NO2 (g) + H2O (l) → 2HNO3 (aq) + NO (g)

a. Use the values of ΔH° f in Appendix 4 to calculate the value of ΔH° for each of the preceding reactions

b. Write the overall equation for the production of nitric acid by the Ostwald process by combining the preceding equations. (Water is also a product.) Is the overall reaction exothermic or endothermic?