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Chapter 12: Problem 59
The greater the molar heat of vaporization of a liquid, the greater its vapor pressure. True or false?
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How is the rate of evaporation of a liquid affected by (a) temperature, (b) the surface area of liquid exposed to air, (c) intermolecular forces?
Metallic iron crystallizes in a cubic lattice. The unit cell edge length is \(287 \mathrm{pm}\). The density of iron is \(7.87 \mathrm{~g} / \mathrm{cm}^{3}\). How many iron atoms are there within a unit cell?
Argon crystallizes in the face-centered cubic arrangement at \(40 \mathrm{~K}\). Given that the atomic radius of argon is \(191 \mathrm{pm},\) calculate the density of solid argon.
A solid is soft and has a low melting point (below \(100^{\circ} \mathrm{C}\) ). The solid, its melt, and a solution containing the substance are all nonconductors of electricity. Classify the solid.
Classify the crystalline form of these substances as ionic crystals, covalent crystals, molecular crystals, or metallic crystals: (a) \(\mathrm{CO}_{2},\) (b) \(\mathrm{B},\) (c) \(\mathrm{S}_{8},\) (d) \(\mathrm{KBr}\), (e) \(\mathrm{Mg}\), (f) \(\mathrm{SiO}_{2},\) (g) \(\mathrm{LiCl},\) (h) Cr.
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