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: In which of the following systems is(are) work done by the surroundings on the system? Assume pressure and temperature are constant.a. 2SO2 (g) + O2 (g) → 2SO3 (g)b. CO2 (s) → CO2 (g)c. 4NH3 (g) + 7O2

Problem

In which of the following systems is(are) work done by the surroundings on the system? Assume pressure and temperature are constant.

a. 2SO2 (g) + O2 (g) → 2SO3 (g)
b. CO2 (s) → CO2 (g)
c. 4NH3 (g) + 7O2 (g) → 4NO(g) + 6H2O (g)
d. N2O4 (g) → 2NO2 (g)
e. CaCO3 (s) → CaCO (s) + CO2 (g)