Chemistry
13th Edition
ISBN: 9781259911156
Author: Raymond Chang Dr., Jason Overby Professor
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 11, Problem 11.72QP
Wet clothes dry more quickly on a hot, dry day than on a hot, humid day. Explain.
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Chapter 11 Solutions
Chemistry
Ch. 11.2 - Name the type(s) of intermolecular forces that...Ch. 11.2 - Prob. 2PECh. 11.2 - Prob. 1RCFCh. 11.2 - Which of the following compounds is most likely to...Ch. 11.3 - Why are motorists advised to use more viscous oils...Ch. 11.4 - When silver crystallizes, it forms face-centered...Ch. 11.4 - Tungsten crystallizes in a body-centered cubic...Ch. 11.4 - Cerium forms face-centered cubic cells when it...Ch. 11.5 - X rays of wavelength 0.154 nm are diffracted from...Ch. 11.5 - Prob. 1RCF
Ch. 11.5 - Prob. 2RCFCh. 11.6 - Prob. 5PECh. 11.6 - Copper crystallizes in a face-centered cubic...Ch. 11.6 - Prob. 1RCFCh. 11.6 - Prob. 2RCFCh. 11.8 - Prob. 7PECh. 11.8 - Calculate the heat released when 68.0 g of steam...Ch. 11.8 - Prob. 1RCFCh. 11.8 - Prob. 2RCFCh. 11.9 - Which phase diagram (a)(c) corresponds to a...Ch. 11 - Prob. 11.1QPCh. 11 - Explain the term polarizability. What kind of...Ch. 11 - Prob. 11.3QPCh. 11 - Prob. 11.4QPCh. 11 - Prob. 11.5QPCh. 11 - Prob. 11.6QPCh. 11 - The compounds Br2 and ICl have the same number of...Ch. 11 - If you lived in Alaska, which of the following...Ch. 11 - The binary hydrogen compounds of the Group 4A...Ch. 11 - List the types of intermolecular forces that exist...Ch. 11 - Prob. 11.11QPCh. 11 - Prob. 11.12QPCh. 11 - Arrange the following in order of increasing...Ch. 11 - Diethyl ether has a boiling point of 34.5C, and...Ch. 11 - Which member of each of the following pairs of...Ch. 11 - Which substance in each of the following pairs...Ch. 11 - Prob. 11.17QPCh. 11 - What kind of attractive forces must be overcome in...Ch. 11 - The following compounds have the same molecular...Ch. 11 - Prob. 11.20QPCh. 11 - Explain why liquids, unlike gases, are virtually...Ch. 11 - What is surface tension? What is the relationship...Ch. 11 - Prob. 11.23QPCh. 11 - Prob. 11.24QPCh. 11 - A glass can be filled slightly above the rim with...Ch. 11 - Draw diagrams showing the capillary action of (a)...Ch. 11 - Prob. 11.27QPCh. 11 - Why does the viscosity of a liquid decrease with...Ch. 11 - Why is ice less dense than water?Ch. 11 - Outdoor water pipes have to be drained or...Ch. 11 - Predict which of the following liquids has greater...Ch. 11 - Predict the viscosity of ethylene glycol relative...Ch. 11 - Define the following terms: crystalline solid,...Ch. 11 - Describe the geometries of the following cubic...Ch. 11 - Classify the solid states in terms of crystal...Ch. 11 - The melting points of the oxides of the...Ch. 11 - What is the coordination number of each sphere in...Ch. 11 - Calculate the number of spheres that would be...Ch. 11 - Metallic iron crystallizes in a cubic lattice. The...Ch. 11 - Barium metal crystallizes in a body-centered cubic...Ch. 11 - Vanadium crystallizes in a body-centered cubic...Ch. 11 - Europium crystallizes in a body-centered cubic...Ch. 11 - Crystalline silicon has a cubic structure. The...Ch. 11 - A face-centered cubic cell contains 8 X atoms at...Ch. 11 - Define X-ray diffraction. What are the typical...Ch. 11 - Write the Bragg equation. Define every term and...Ch. 11 - When X rays of wavelength 0.090 nm are diffracted...Ch. 11 - The distance between layers in a NaCl crystal is...Ch. 11 - Describe and give examples of the following types...Ch. 11 - Prob. 11.50QPCh. 11 - A solid is hard, brittle, and electrically...Ch. 11 - A solid is soft and has a low melting point (below...Ch. 11 - Prob. 11.53QPCh. 11 - Which of the following are molecular solids and...Ch. 11 - Classify the solid state of the following...Ch. 11 - Prob. 11.56QPCh. 11 - Prob. 11.57QPCh. 11 - Define glass. What is the chief component of...Ch. 11 - What is a phase change? Name all possible changes...Ch. 11 - What is the equilibrium vapor pressure of a...Ch. 11 - Use any one of the phase changes to explain what...Ch. 11 - Define the following terms: (a) molar heat of...Ch. 11 - How is the molar heat of sublimation related to...Ch. 11 - What can we learn about the intermolecular forces...Ch. 11 - The greater the molar heat of vaporization of a...Ch. 11 - Define boiling point. How does the boiling point...Ch. 11 - As a liquid is heated at constant pressure, its...Ch. 11 - Prob. 11.68QPCh. 11 - Prob. 11.69QPCh. 11 - How do the boiling points and melting points of...Ch. 11 - Prob. 11.71QPCh. 11 - Wet clothes dry more quickly on a hot, dry day...Ch. 11 - Which of the following phase transitions gives off...Ch. 11 - A beaker of water is heated to boiling by a Bunsen...Ch. 11 - Calculate the amount of heat (in kJ) required to...Ch. 11 - Prob. 11.76QPCh. 11 - How is the rate of evaporation of a liquid...Ch. 11 - The molar heats of fusion and sublimation of...Ch. 11 - The following compounds, listed with their boiling...Ch. 11 - Prob. 11.80QPCh. 11 - A student hangs wet clothes outdoors on a winter...Ch. 11 - Steam at 100C causes more serious burns than water...Ch. 11 - Vapor pressure measurements at several different...Ch. 11 - Prob. 11.84QPCh. 11 - The vapor pressure of liquid X is lower than that...Ch. 11 - Explain why splashing a small amount of liquid...Ch. 11 - What is a phase diagram? What useful information...Ch. 11 - Explain how waters phase diagram differs from...Ch. 11 - The phase diagram of sulfur is shown. (a) How many...Ch. 11 - A length of wire is placed on top of a block of...Ch. 11 - Prob. 11.91QPCh. 11 - A phase diagram of water is shown at the end of...Ch. 11 - Name the kinds of attractive forces that must be...Ch. 11 - Prob. 11.94QPCh. 11 - Prob. 11.95QPCh. 11 - Prob. 11.96QPCh. 11 - Referring to Figure 11.41, determine the stable...Ch. 11 - Classify the unit cell of molecular iodine.Ch. 11 - A CO2 fire extinguisher is located on the outside...Ch. 11 - What is the vapor pressure of mercury at its...Ch. 11 - A flask of water is connected to a powerful vacuum...Ch. 11 - The liquid-vapor boundary line in the phase...Ch. 11 - Prob. 11.103QPCh. 11 - Prob. 11.104QPCh. 11 - In 2009, thousands of babies in China became ill...Ch. 11 - The vapor pressure of a liquid in a closed...Ch. 11 - A student is given four solid samples labeled W,...Ch. 11 - Prob. 11.108QPCh. 11 - Note the kettle of boiling water on a stove....Ch. 11 - The south pole of Mars is covered with dry ice,...Ch. 11 - The properties of gases, liquids, and solids...Ch. 11 - Select the substance in each pair that should have...Ch. 11 - Prob. 11.113QPCh. 11 - Under the same conditions of temperature and...Ch. 11 - The fluorides of the second-period elements and...Ch. 11 - The standard enthalpy of formation of gaseous...Ch. 11 - The following graph shows approximate plots of ln...Ch. 11 - Determine the final state and its temperature when...Ch. 11 - The distance between Li+ and Cl is 257 pm in solid...Ch. 11 - Heat of hydration, that is, the heat change that...Ch. 11 - Prob. 11.121QPCh. 11 - Calculate the H for the following processes at...Ch. 11 - Gaseous or highly volatile liquid anesthetics are...Ch. 11 - A beaker of water is placed in a closed container....Ch. 11 - The phase diagram of helium is shown. Helium is...Ch. 11 - Prob. 11.126QPCh. 11 - Ozone (O3) is a strong oxidizing agent that can...Ch. 11 - A sample of limestone (CaCO3) is heated in a...Ch. 11 - Silicon used in computer chips must have an...Ch. 11 - Carbon and silicon belong to Group 4A of the...Ch. 11 - Prob. 11.131QPCh. 11 - A 1.20-g sample of water is injected into an...Ch. 11 - What are the advantages of cooking the vegetable...Ch. 11 - A quantitative measure of how efficiently spheres...Ch. 11 - Provide an explanation for each of the following...Ch. 11 - Argon crystallizes in the face-centered cubic...Ch. 11 - A chemistry instructor performed the following...Ch. 11 - Given the phase diagram of carbon shown, answer...Ch. 11 - Swimming coaches sometimes suggest that a drop of...Ch. 11 - Prob. 11.140QPCh. 11 - Why do citrus growers spray their trees with water...Ch. 11 - What is the origin of dark spots on the inner...Ch. 11 - The compound dichlorodifluoromethane (CCl2F2) has...Ch. 11 - A student heated a beaker of cold water (on a...Ch. 11 - Sketch the cooling curves of water from about 110C...Ch. 11 - Iron crystallizes in a body-centered cubic...Ch. 11 - Prob. 11.147QPCh. 11 - Prob. 11.148QPCh. 11 - Prob. 11.149QPCh. 11 - A sample of water shows the following behavior as...Ch. 11 - Prob. 11.151QPCh. 11 - Assuming ideal behavior, calculate the density of...Ch. 11 - Both calcium and strontium crystallize in...Ch. 11 - Is the vapor pressure of a liquid more sensitive...Ch. 11 - Prob. 11.155QPCh. 11 - Without the aid of instruments, give two examples...
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- The amount of heat required to melt 2 lbs of ice is twice the amount of heat required to melt 1 lb of ice. Is this observation a macroscopic or microscopic description of chemical behavior? Explain your answer.arrow_forwardWhy does sweating cool the human body?arrow_forwardThe enthalpy of vaporization of water is larger than its enthalpy of fusion. Explain why.arrow_forward
- Are changes in state physical or chemical changes? Explain. What type of forces must be overcome to melt or vaporize a substance (are these forces intramolecular or intermolecular)? Define the molar heat of fusion and molar heat of vaporization. Why is the molar heat of vaporization of water so much larger than its molar heat of fusion? Why does the boiling point of a liquid vary with altitude?arrow_forwardWill a closed container of water at 70 C or an open container of water at the same temperature cool faster on a cold winter day? Explain why.arrow_forwardExplain why each of these properties is important to sustaining life. Please use your own words and answer all 5 questions 1. Water has a high surface tension. 2. Ice is less dense than water. 3. High heat is required for vaporization of water (a large amount of heat is required to convert liquid water to a gas). 4. Water has a high specific heat capacity (a large amount of heat is required to raise the temperature of one gram of water one degree Celsius). 5. Water has a high dielectric constant (a measure of the polarity of the polar covalent bond).arrow_forward
- Water can absorb or release large amounts of heat with little change in actual temperature. Why?arrow_forwardGiven that a 10.0 g sample of ice at 0.0 °C melts and then the resultant water proceeds to warm to 20.0 °C, there are two separate processes (dealing with the transfer of heat) that describe that occurrence. What are those two processes?arrow_forward12. Patients with a high body temperature are often given "alcohol baths". The heat of vaporization of isopropyl alcohol (rubbing alcohol) is 159 cal/g. How much heat is removed from the skin by the evaporation of 190 g (about 2 cup) of isopropyl alcohol? Edit View Insert Format Tools Table 12pt v Paragraph varrow_forward
- As water cools to a temperature of zero degrees Celsius and forms ice, water molecules tend to move farther apart. vībrate rapidly. flow more randomly. gradually expand.arrow_forward1. Calculate amount of heat that must be absorbed by 10.0 gram of ice at 20 degrees Celsius to convert it to liquid water at 60 degrees Celsius. Given: Specific heat of ice = 2.1 J/g0C Specific heat of water = 4.18 J/g0C Heat fus = 6.0 kJ/mol 2. What mass of water need to evaporate from your skin in order to dissipate 170,000 J of heat from your body? Given: H2O (l) H2O (g) Hvap = 40.7 kJ/molarrow_forward22) Evaporation of sweat requires energy and thus take excess heat away from the body. Some of the water that you drink may eventually be converted into sweat and evaporate. If you drink a 20-ounce bottle of water (590g) that had been in the refrigerator at 3.8 °C, how much heat is needed to convert all of that water into sweat and then to vapor? (Note: Your body temperature is 36.6 °C. For the purpose of solving this problem, assume that the therm properties of sweat are the same as for water. Us, liquid water = 4.184 J/g °C Cs, steam= 1.84 J/g °C C3, ice = 2.09 /g °C AHvap = 40.67 kJ/mol at 36.6 °C. %3D A Hus = 6.01 kJ/mol A) 1420 kJ B) 81 kJ C) 1150 kJ 23) Based on the graph shown below, choose the correct statement about sublimation? Gas Liquid sublimation Solid A) Sublimation is a phase transition from solid to gas B) According to Hess Law, AHsub can be calculated as sum of AHvap and AHUS C) Both A and B are correctarrow_forward
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