Chemistry with Access Code, Hybrid Edition

9th Edition

ISBN: 9781285188492

Author: Steven S. Zumdahl

Publisher: CENGAGE L

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Textbook Question

Chapter 10, Problem 97E

The molar heat of fusion of sodium metal is 2.60 kJ/mol, whereas its heat of vaporization is 97.0 kJ/mol.

a. Why is the heat of vaporization so much larger than the heat of fusion?

b. What quantity of heat would be needed to melt 1.00 g sodium at its normal melting point?

c. What quantity of heat would be needed to vaporize 1.00 g sodium at its normal boiling point?

d. What quantity of heat would be evolved if 1.00 g sodium vapor condensed at its normal boiling point?

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Chapter 10 Solutions

Chemistry with Access Code, Hybrid Edition

Ch. 10 - What are intermolecular forces? How do they differ...Ch. 10 - Define the following terms and describe how each...Ch. 10 - Compare and contrast solids, liquids, and gases.Ch. 10 - Prob. 4RQ Ch. 10 - What is a lattice? What is a unit cell? Describe a...Ch. 10 - What is closest packing? What is the difference...Ch. 10 - Describe, in general, the structures of ionic...Ch. 10 - Prob. 9RQ Ch. 10 - Prob. 10RQ Ch. 10 - Compare and contrast the phase diagrams of water...

Ch. 10 - It is possible to balance a paper clip on the...Ch. 10 - Consider a sealed container half-filled with...Ch. 10 - Explain the following: You add 100 mL water to a...Ch. 10 - Prob. 4ALQ Ch. 10 - Prob. 5ALQ Ch. 10 - Why do liquids have a vapor pressure? Do all...Ch. 10 - Prob. 7ALQ Ch. 10 - What is the vapor pressure of water at 100C? How...Ch. 10 - Prob. 9ALQ Ch. 10 - Prob. 10ALQ Ch. 10 - Prob. 11ALQ Ch. 10 - In the diagram below, which lines represent the...Ch. 10 - Prob. 14Q Ch. 10 - Atoms are assumed to touch in closest packed...Ch. 10 - Define critical temperature and critical pressure....Ch. 10 - Use the kinetic molecular theory to explain why a...Ch. 10 - Prob. 18Q Ch. 10 - Prob. 19Q Ch. 10 - Describe what is meant by a dynamic equilibrium in...Ch. 10 - Prob. 21Q Ch. 10 - Prob. 22Q Ch. 10 - Prob. 23Q Ch. 10 - Prob. 24Q Ch. 10 - When wet laundry is hung on a clothesline on a...Ch. 10 - You have three covalent compounds with three very...Ch. 10 - Prob. 28Q Ch. 10 - Compare and contrast the structures of the...Ch. 10 - Silicon carbide (SiC) is an extremely hard...Ch. 10 - How could you tell experimentally if TiO2 is an...Ch. 10 - A common prank on college campuses is to switch...Ch. 10 - A plot of In (Pvap) versus 1/T (K) is linear with...Ch. 10 - Prob. 34Q Ch. 10 - Identify the most important types of interparticle...Ch. 10 - Prob. 36E Ch. 10 - Predict which substance in each of the following...Ch. 10 - Consider the compounds CI2, HCI. 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If the...Ch. 10 - The radius of gold is 144 pm, and the density is...Ch. 10 - The radius of tungsten is 137 pm and the density...Ch. 10 - What fraction of the total volume of a cubic...Ch. 10 - Iron has a density of 7.86 g/cm3 and crystallizes...Ch. 10 - Prob. 63E Ch. 10 - Prob. 64E Ch. 10 - Selenium is a semiconductor used in photocopying...Ch. 10 - Prob. 66E Ch. 10 - Prob. 67E Ch. 10 - Prob. 68E Ch. 10 - The structures of some common crystalline...Ch. 10 - The unit cell for nickel arsenide is shown below....Ch. 10 - Cobalt fluoride crystallizes in a closest packed...Ch. 10 - The compounds Na2O, CdS, and ZrI4. all can be...Ch. 10 - What is the formula for the compound that...Ch. 10 - Prob. 74E Ch. 10 - A certain metal fluoride crystallizes in such a...Ch. 10 - Prob. 76E Ch. 10 - The unit cell of MgO is shown below l Does MgO...Ch. 10 - In solid KCl the smallest distance between the...Ch. 10 - The CsCl structure is a simple cubic array of...Ch. 10 - MnO has either the NaCI type structure or the CsCI...Ch. 10 - What type of solid will each of the following...Ch. 10 - What type of solid will each of the following...Ch. 10 - The memory metal, nitinol, is an alloy of nickel...Ch. 10 - Superalloys have been made of nickel and aluminum....Ch. 10 - Perovskite is a mineral containing calcium,...Ch. 10 - A mineral crystallizes in a cubic closest packed...Ch. 10 - Materials containing the elements Y, Ba, Cu, and O...Ch. 10 - The structures of another class of ceramic,...Ch. 10 - Plot the following data and determine Hvap for...Ch. 10 - From the following data for liquid nitric acid,...Ch. 10 - In Breckenridge, Colorado, the typical atmospheric...Ch. 10 - The temperature inside a pressure cooker is 115C....Ch. 10 - Carbon tetrachloride, CCl4, has a vapor pressure...Ch. 10 - Diethyl ether (CH3CH2OCH2CH3) was one of the first...Ch. 10 - A substance, X, has the following properties:...Ch. 10 - Use the heating-cooling curve below to answer the...Ch. 10 - The molar heat of fusion of sodium metal is 2.60...Ch. 10 - Prob. 98E Ch. 10 - What quantity of energy does it take to convert...Ch. 10 - Consider a 75.0-g sample of H2O(g) at 125C. 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The first...Ch. 10 - Prob. 115AE Ch. 10 - Argon has a cubic closest packed structure as a...Ch. 10 - Prob. 117AE Ch. 10 - A 20.0-g sample of ice at 10.0C is mixed with...Ch. 10 - In regions with dry climates, evaporative coolers...Ch. 10 - Which of the following compound(s) exhibit only...Ch. 10 - Which of the following statements about...Ch. 10 - Prob. 123CWP Ch. 10 - Aluminum has an atomic radius of 143 pm and forms...Ch. 10 - Pyrolusite is a mineral containing manganese ions...Ch. 10 - The structure of the compound K2O is best...Ch. 10 - Prob. 127CWP Ch. 10 - Some ice cubes at 0c with a total mass of 403 g...Ch. 10 - The enthalpy of vaporization for acetone is 32.0...Ch. 10 - Prob. 130CWP Ch. 10 - When I mole of benzene is vaporized at a constant...Ch. 10 - You and a friend each synthesize a compound with...Ch. 10 - Prob. 133CP Ch. 10 - Prob. 134CP Ch. 10 - Consider two different organic compounds, each...Ch. 10 - Rationalize the differences in physical properties...Ch. 10 - Prob. 137CP Ch. 10 - Some ionic compounds contain a mixture of...Ch. 10 - Some ionic compounds contain a mixture of...Ch. 10 - Spinel is a mineral that contains 37.9% aluminum,...Ch. 10 - Mn crystallizes in the same type of cubic unit...Ch. 10 - You are asked to help set up a historical display...Ch. 10 - Some water is placed in a sealed glass container...Ch. 10 - The molar enthalpy of vaporization of water at 373...Ch. 10 - Prob. 145CP Ch. 10 - Rubidium chloride has the sodium chloride...Ch. 10 - Prob. 147IP Ch. 10 - A metal burns in air at 600c under high pressure...Ch. 10 - Prob. 149IP Ch. 10 - General Zod has sold Lex Luthor what Zod claims to...

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