Ch.6 - Thermochemistry WorksheetSee 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: Thermodynamic Quantities for Selected Substances at 298.15 K Substance Hfo (kJ/mol) NO(g) 90.37 NO2(g) 33.84 N2O(g) 81.6 N2O4(g) 9.66 SO2(g) -296.9 SO3(g) -395.2 NaBr(s) -361.4 NaBr(aq) -360.6 Pb(NO3)2(s) -451.9 Pb(NO3)2(aq) -421.3 Write a balanced equation depicting the formation of one mole of NaBr(s) from its elements in their standard states.

Problem

Thermodynamic Quantities for Selected Substances at 298.15 K

Substance Hfo (kJ/mol)
NO(g) 90.37
NO2(g) 33.84
N2O(g) 81.6
N2O4(g) 9.66
SO2(g) -296.9
SO3(g) -395.2
NaBr(s) -361.4
NaBr(aq) -360.6
Pb(NO3)2(s) -451.9
Pb(NO3)2(aq) -421.3

Write a balanced equation depicting the formation of one mole of NaBr(s) from its elements in their standard states.