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: Which of the following is an endothermic process?  (1) Chlorine gas expands while keeping a constant temperature. (∆E = 0) (2) Freezing gaseous carbon dioxide into dry ice at 194.7 K (3) Hydrogen peroxide decomposes to more stable products (4) An electric current breaks water down into H2 and O2

Solution: Which of the following is an endothermic process?  (1) Chlorine gas expands while keeping a constant temperature. (∆E = 0) (2) Freezing gaseous carbon dioxide into dry ice at 194.7 K (3) Hydrogen p

Problem

Which of the following is an endothermic process? 

(1) Chlorine gas expands while keeping a constant temperature. (∆E = 0)

(2) Freezing gaseous carbon dioxide into dry ice at 194.7 K

(3) Hydrogen peroxide decomposes to more stable products

(4) An electric current breaks water down into H2 and O2