Problem 11.1QP: List the different phase transitions that are possible and give examples of each. Problem 11.2QP: Describe how you could purify iodine by sublimation Problem 11.3QP Problem 11.4QP: Explain why 15 g of steam at 100C melts more ice than 15 g of liquid water at 100C. Problem 11.5QP: Why is the heat of fusion of a substance smaller than its heat of vaporization? Problem 11.6QP: Explain why evaporation leads to cooling of the liquid. Problem 11.7QP: Describe the behavior of a liquid and its vapor in a closed vessel as the temperature increases. Problem 11.8QP: Gases that cannot be liquefied at room temperature merely by compression are called permanent gases.... Problem 11.9QP Problem 11.10QP: Why does the vapor pressure of a liquid depend on the intermolecular forces? Problem 11.11QP Problem 11.12QP Problem 11.13QP Problem 11.14QP Problem 11.15QP Problem 11.16QP Problem 11.17QP Problem 11.18QP: What is the coordination number of Cs in CsCl? of Na in NaCl? of Zn2 in ZnS? Problem 11.19QP: Explain in words how Avogadros number could be obtained from the unit-cell edge length of a cubic... Problem 11.20QP Problem 11.21QP Problem 11.22QP Problem 11.23QP: Under the right conditions, hydrogen gas, H2, can be liquefied. Which is the most important... Problem 11.24QP: An element crystallizes with a simple cubic lattice with atoms at all the lattice points. If the... Problem 11.25QP: Intermolecular Forces The following picture represents atoms of hypothetical, nonmetallic, monatomic... Problem 11.26QP: Heat and Molecular Behavior Part 1: a Is it possible to add heat to a pure substance and not observe... Problem 11.27QP: Shown here is a curve of the distribution of kinetic energies of the molecules in a liquid at an... Problem 11.28QP: Consider a substance X with a Hvap = 20.3 kJ/mol and Hfus = 9.0 kJ/mol. The melting point, freezing... Problem 11.29QP Problem 11.30QP Problem 11.31QP Problem 11.32QP Problem 11.33QP Problem 11.34QP Problem 11.35QP Problem 11.36QP Problem 11.37QP Problem 11.38QP Problem 11.39QP: Use Figure 11.7 to estimate the boiling point of diethyl ether, (C2H5)2O, under an external pressure... Problem 11.40QP: Use Figure 11.7 to estimate the boiling point of carbon tetrachloride, CCl4, under an external... Problem 11.41QP: An electric heater coil provided heat to a 15.5-g sample of iodine. I2, at the rate of 3.48 J/s. It... Problem 11.42QP Problem 11.43QP: Isopropyl alcohol, CH3CHOHCH3, is used in rubbing alcohol mixtures. Alcohol on the skin cools by... Problem 11.44QP: Liquid butane, C4H10, is stored in cylinders to be used as a fuel. Suppose 35.5 g of butane gas is... Problem 11.45QP: Water at 0C was placed in a dish inside a vessel maintained at low pressure by a vacuum pump. After... Problem 11.46QP: A quantity of ice at 0.0C was added to 33.6 g of water at 21.0C to give water at 0.0C. How much ice... Problem 11.47QP: A quantity of ice at 0C is added to 64.3 g of water in a glass at 55C. After the ice melted, the... Problem 11.48QP: Steam at 100C was passed into a flask containing 275 g of water at 21C, where the steam condensed.... Problem 11.49QP: Chloroform, CHCl3, a volatile liquid, was once used as an anesthetic but has been replaced by safer... Problem 11.50QP Problem 11.51QP: White phosphorus, P4, is normally a white, waxy solid melting at 44C to a colorless liquid. The... Problem 11.52QP: Carbon disulfide, CS2 is a volatile, flammable liquid. It has a vapor pressure of 400.0 mmHg at... Problem 11.53QP Problem 11.54QP Problem 11.55QP Problem 11.56QP Problem 11.57QP: Which of the following substances can be liquefied by applying pressure at 25C? For those that... Problem 11.58QP: A tank of gas at 21C has a pressure of 1.0 atm. Using the data in the table, answer the following... Problem 11.59QP Problem 11.60QP: Krypton, Kr, has a triple point at 169C and 133 mmHg and a critical point at 63C and 54 atm. The... Problem 11.61QP Problem 11.62QP: The heats of vaporization of liquid O2, liquid Ne, and liquid methanol, CH3OH, are 6.8 kJ/moL 1.8... Problem 11.63QP: For each of the following substances, list the kinds of intermolecular forces expected. a b... Problem 11.64QP: Which of the following compounds would you expect to exhibit only London forces? a potassium... Problem 11.65QP: Arrange the following substances in order of increasing magnitude of the London forces: SiCl4, CCl4,... Problem 11.66QP: Arrange the following substances in order of increasing magnitude of the London forces: CH4, C3H8,... Problem 11.67QP: Methane, CH4, reacts with chlorine, Cl2, to produce a series of chlorinated hydrocarbons: methyl... Problem 11.68QP: The halogens form a series of compounds with each other, which are called interhalogens. Examples... Problem 11.69QP Problem 11.70QP Problem 11.71QP: List the following substances in order of increasing boiling point. Problem 11.72QP: Arrange the following compounds in order of increasing boiling point. Problem 11.73QP: Classify each of the following by the type of solid it forms: a Na; b Fe; c B; d H2O; e KF. Problem 11.74QP: Classify each of the following by the type of solid it forms: a F2; b BaCl2; c BCl3; d CCl4; e CaO. Problem 11.75QP: Classify each of the following solid elements as molecular, metallic, ionic, or covalent network. a... Problem 11.76QP: Which of the following do you expect to be molecular solids? a silicon tetrachloride, SiCl4 b... Problem 11.77QP Problem 11.78QP: Arrange the following substances in order of increasing melting point. Problem 11.79QP Problem 11.80QP: On the basis of the description given, classify each of the following solids as molecular, metallic,... Problem 11.81QP Problem 11.82QP: Associate each of the solids BN, P4S3, Pb, and CaCl2 with one of the following sets of properties. a... Problem 11.83QP Problem 11.84QP: How many atoms are there in a body-centered cubic unit cell of an atomic crystal in which all atoms... Problem 11.85QP: Metallic iron has a body-centered cubic lattice with all atoms at lattice points and a unit cell... Problem 11.86QP: Nickel has a face-centered unit cell with all atoms at lattice points and an edge length of 352.4... Problem 11.87QP: Copper metal has a face-centered cubic structure with all atoms at lattice points and a density of... Problem 11.88QP: Barium metal has a body-centered cubic lattice with all atoms at lattice points; its density is 3.51... Problem 11.89QP: Gold has cubic crystals whose unit cell has an edge length of 407.9 pm. The density of the metal is... Problem 11.90QP: Chromium forms cubic crystals whose unit cell has an edge length of 288.5 pm. The density of the... Problem 11.91QP: Assume X has a body-centered cubic lattice with all atoms at the lattice points. The edge length of... Problem 11.92QP: Lead has a face-centered cubic lattice with all atoms at lattice points and a unit-cell edge length... Problem 11.93QP Problem 11.94QP: Metallic barium has a body-centered cubic structure (all atoms at the lattice points) and a density... Problem 11.95QP Problem 11.96QP Problem 11.97QP Problem 11.98QP Problem 11.99QP Problem 11.100QP Problem 11.101QP Problem 11.102QP Problem 11.103QP: Describe the formation of hydrogen bonds in propanol, CH3CH2CH2OH. Represent possible hydrogen... Problem 11.104QP Problem 11.105QP: Ethylene glycol (CH2OHCH2OH) is a slightly viscous liquid that boils at 198C. Pentane (C5H12), which... Problem 11.106QP: Pentylamine, CH3CH2CH2CH2CH2NH2, is a liquid that boils at 104C and has a viscosity of 10 10 4... Problem 11.107QP Problem 11.108QP Problem 11.109QP: Decide which substance in each of the following pairs has the lower melting point. Explain how you... Problem 11.110QP Problem 11.111QP: Iridium metal, Ir, crystallizes in a face-centered cubic (close-packed) structure. The edge length... Problem 11.112QP: The edge length of the unit cell of tantalum metal, Ta, is 330.6 pm; the unit cell is body-centered... Problem 11.113QP Problem 11.114QP: Rubidium metal has a body-centered cubic structure (with one atom at each lattice point). The... Problem 11.115QP: Calculate the percent of volume that is actually occupied by spheres in a body-centered cubic... Problem 11.116QP: Calculate the percent of volume that is actually occupied by spheres in a face-centered cubic... Problem 11.117QP: For the hydrogen halides and the noble gases, we have the following boiling points: Halogen Family,... Problem 11.118QP: For the carbon and nitrogen family hydrides, we have the following boiling points: Carbon Family,C... Problem 11.119QP Problem 11.120QP Problem 11.121QP Problem 11.122QP Problem 11.123QP Problem 11.124QP Problem 11.125QP: A geckos toes have been shown to stick to walls through van der Waals forces. Van der Waals forces... Problem 11.126QP Problem 11.127QP Problem 11.128QP Problem 11.129QP Problem 11.130QP Problem 11.131QP Problem 11.132QP Problem 11.133QP: In an experiment, 20.00 L of dry nitrogen gas, N2, at 20.0C and 750.0 mmHg is slowly bubbled into... Problem 11.134QP: On a particular summer day, the temperature is 30.0C and the relative humidity is 80.0% (which means... Problem 11.135QP Problem 11.136QP Problem 11.137QP Problem 11.138QP Problem 11.139QP Problem 11.140QP Problem 11.141QP: Rhenium forms a series of solid oxides: Re2O7 (yellow), ReO3 (red), Re2O5 (blue), and ReO2 (brown).... Problem 11.142QP: Shown below is the cubic unit cell of an ionic compound. Answer the questions by referring to this... Problem 11.143QP Problem 11.144QP: Strontium crystallizes as a face-centered cubic cell. What is the mass of a single unit cell of Sr? Problem 11.145QP Problem 11.146QP Problem 11.147QP Problem 11.148QP Problem 11.149QP Problem 11.150QP Problem 11.151QP Problem 11.152QP Problem 11.153QP: How much heat must be added to 28.0 g of solid white phosphorus, P4, at 24.0C to give the liquid at... Problem 11.154QP Problem 11.155QP Problem 11.156QP Problem 11.157QP: Nanotechnology, or technology utilizing 1100 nm sized particles, has rapidly expanded in the past... format_list_bulleted