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: Use the phase diagram for neon to answer the following questions:What is the approximate value of the normal melting point?

Solution: Use the phase diagram for neon to answer the following questions:What is the approximate value of the normal melting point?

Problem

Use the phase diagram for neon to answer the following questions:

A phase diagram for neon. The x-axis is temperature in Kelvin, ranging from 0 to 100 with intervals of 20. The y axis is pressure in atmospheres, ranging from 10 to the negative thee to 10 to the positive three. The line separating the solid and gas starts at (15, 10^-3), runs through (18, 10^-2), (22, 10^-1), and ends at (24, 0.4). The line separating the solid and liquid is vertical starting at (24, 0.4) running through (24, 10^3). The curve separating the gas and liquid starts at (24, 0.4) and runs through (36, 10), ending at (44, 27). There is a vertical line separating the liquid and supercritical fluid starting at (44, 27) and running through (44, 10^3). There is a horizontal line separating the gas from the supercritical fluid starting at (44, 27) and running through (100, 27).

What is the approximate value of the normal melting point?

Solution
  • Melting point of a substance is the temperature where solid changes to liquid. At melting point, solid and liquid exists in equilibrium
  • When it says at normal boiling pointthis is the temperature when the change of solid to liquid happens at 1 atm.
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