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 much energy is required to vaporize 22.7 g of dichloromethane (CH 2Cl2) at its boiling point, if its ΔHvap is 31.6 kJ/mol? The molar mass of dichloromethane is 84.9 g/mol?a) 31.2 kJb) 8.45 kJc) 71

Problem

How much energy is required to vaporize 22.7 g of dichloromethane (CH 2Cl2) at its boiling point, if its ΔHvap is 31.6 kJ/mol? The molar mass of dichloromethane is 84.9 g/mol?

a) 31.2 kJ

b) 8.45 kJ

c) 717 kJ

d) 15.4 kJ

e) 18.1 kJ