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: How many of the following processes would be exothermic (ΔH < 0)? HCl (g)  →  H (g) + Cl (g) Br (g) + Br (g) → Br 2 (g) KI (s) → K + (g) + l  - (g) CO2 (g) → CO (g) + O (g)   a. 0 b. 1 c. 2 d. 3 e. 4

Problem

How many of the following processes would be exothermic (ΔH < 0)?

HCl (g)  →  H (g) + Cl (g)

Br (g) + Br (g) → Br 2 (g)

KI (s) → K + (g) + l  - (g)

CO2 (g) → CO (g) + O (g)

 

a. 0

b. 1

c. 2

d. 3

e. 4