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: Estimate the external pressure at which ethanol will boil at 60 oC.

Problem


A graph of vapor pressure in torr versus temperature in degrees Celsius shows curves for diethyl ether (normal boiling point 34.6 Celsius at 760 torr), ethanol (normal boiling point 78.3 Celsius at 760 torr), water (normal boiling point 100 Celsius at 760 torr), and ethylene glycol (no normal boiling point listed). The curve for diethyl ether has points (0, 200), (17, 400), (20, 450), (28, 600), (35, 800), (40, 1000). The curve for ethanol has points (0, 10), (20, 15), (40, 160), (48, 200), (60, 340), (64, 400), (72, 600), (80, 800), (82, 1000).

Estimate the external pressure at which ethanol will boil at 60 oC.