Ch.11 - Liquids, Solids & Intermolecular ForcesWorksheetSee 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: The following information is given for magnesium at 1 atm: boiling point = 1090°C                        ΔHvap (1090°C) = 132 kJ/molmelting point = 649°C                        ΔHfus (649°C) = 8.95 kJ

Problem

The following information is given for magnesium at 1 atm: 

boiling point = 1090°C                        ΔHvap (1090°C) = 132 kJ/mol

melting point = 649°C                        ΔHfus (649°C) = 8.95 kJ/mol

specific heat solid = 1.02 J/g°C 

specific heat liquid = 1.34 J/g°C   

________ kJ are required to melt a 43.1 g sample of solid magnesium, Mg, at its normal melting point.