EBK GENERAL CHEMISTRY
11th Edition
ISBN: 8220101425904
Author: Gammon
Publisher: YUZU
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Textbook Question
Chapter 11, Problem 11.39QP
Use Figure 11.7 to estimate the boiling point of diethyl ether, (C2H5)2O, under an external pressure of 470 mmHg.
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The molecular mass of butanol, C4H,OH, is 74.14; that
of ethylene glycol, CH2(OH)CH,OH, is 62.08, yet their
boiling points are 117.2 °C and 174 °C, respectively.
Explain the reason for the difference.
The two hydroxyl groups in ethylene glycol provide more
locations for the formation of hydrogen bonds. The
existence of more hydrogen bonds considerably
decreases the boiling point
O The two hydroxyl groups in ethylene glycol provide less
locations for the formation of hydrogen bonds. The
existence of less hydrogen bonds considerably increases
the boiling point
The two hydroxyl groups in ethylene glycol provide more
locations for the formation of hydrogen bonds. The
existence of more hydrogen bonds considerably increases
the boiling point
Given that the normal boiling point of CH3CH2CH2CH2NH2 is 77 °C, which of the following statements about the process below is/are correct? You may choose more than one, or none, of the statements.
CH3CH2CH2CH2NH2(g, 96 °C, 1 atm) ⟶ CH3CH2CH2CH2NH2(l, 63 °C, 1 atm)
You may assume that the temperature of the surroundings is constant and also equal to 63 °C.
Note: The normal boiling point (Tnbp) is the boiling temperature at 1 atm. The phase change is reversible at the normal boiling point but irreversible if P = 1 atm and T ≠ Tnbp.
The entropy of the system increases: ΔS > 0.
The entropy of the surroundings increases: ΔSsurr > 0.
The entropy of the universe increases: ΔSuniv > 0.
Work is done by the system on the surroundings.
Heat flows from the system into the surroundings.
The entropy change for the system is equal to ΔH / Tvap.
The entropy change for the system is equal to ΔH / Tsurr.…
2. The boiling point of methanol is 338 K. What is the vapor pressure of methanol at 250
K, given that AHwap = 35 kJ/mol?
Chapter 11 Solutions
EBK GENERAL CHEMISTRY
Ch. 11.2 - The heat of vaporization of ammonia is 23.4...Ch. 11.2 - Shown here is a representation of a closed...Ch. 11.2 - Prob. 11.2ECh. 11.2 - Selenium tetrafluoride, SeF4, is a colorless...Ch. 11.3 - Prob. 11.4ECh. 11.3 - When camping at high altitude, you need to pay...Ch. 11.5 - Consider two liquids, labeled A and B, that are...Ch. 11.5 - List the different intermolecular forces you would...Ch. 11.5 - Arrange the following hydrocarbons in order of...Ch. 11.5 - At the same temperature, methyl chloride, CH3Cl,...
Ch. 11.5 - A common misconception is that the following...Ch. 11.6 - Prob. 11.8ECh. 11.6 - Prob. 11.9ECh. 11.7 - Figure 11.35 shows solid dots (atoms) forming a...Ch. 11.8 - Shown here is a representation of a unit cell for...Ch. 11.9 - Lithium metal has a body-centered cubic structure...Ch. 11.9 - Potassium metal has a body-centered cubic...Ch. 11 - List the different phase transitions that are...Ch. 11 - Describe how you could purify iodine by...Ch. 11 - Prob. 11.3QPCh. 11 - Explain why 15 g of steam at 100C melts more ice...Ch. 11 - Why is the heat of fusion of a substance smaller...Ch. 11 - Explain why evaporation leads to cooling of the...Ch. 11 - Describe the behavior of a liquid and its vapor in...Ch. 11 - Gases that cannot be liquefied at room temperature...Ch. 11 - Prob. 11.9QPCh. 11 - Why does the vapor pressure of a liquid depend on...Ch. 11 - Prob. 11.11QPCh. 11 - Prob. 11.12QPCh. 11 - Prob. 11.13QPCh. 11 - Prob. 11.14QPCh. 11 - Prob. 11.15QPCh. 11 - Prob. 11.16QPCh. 11 - Prob. 11.17QPCh. 11 - What is the coordination number of Cs in CsCl? of...Ch. 11 - Explain in words how Avogadros number could be...Ch. 11 - Prob. 11.20QPCh. 11 - Prob. 11.21QPCh. 11 - Prob. 11.22QPCh. 11 - Under the right conditions, hydrogen gas, H2, can...Ch. 11 - An element crystallizes with a simple cubic...Ch. 11 - Intermolecular Forces The following picture...Ch. 11 - Heat and Molecular Behavior Part 1: a Is it...Ch. 11 - Shown here is a curve of the distribution of...Ch. 11 - Consider a substance X with a Hvap = 20.3 kJ/mol...Ch. 11 - Prob. 11.29QPCh. 11 - Prob. 11.30QPCh. 11 - Prob. 11.31QPCh. 11 - Prob. 11.32QPCh. 11 - Prob. 11.33QPCh. 11 - Prob. 11.34QPCh. 11 - Prob. 11.35QPCh. 11 - Prob. 11.36QPCh. 11 - Prob. 11.37QPCh. 11 - Prob. 11.38QPCh. 11 - Use Figure 11.7 to estimate the boiling point of...Ch. 11 - Use Figure 11.7 to estimate the boiling point of...Ch. 11 - An electric heater coil provided heat to a 15.5-g...Ch. 11 - Prob. 11.42QPCh. 11 - Isopropyl alcohol, CH3CHOHCH3, is used in rubbing...Ch. 11 - Liquid butane, C4H10, is stored in cylinders to be...Ch. 11 - Water at 0C was placed in a dish inside a vessel...Ch. 11 - A quantity of ice at 0.0C was added to 33.6 g of...Ch. 11 - A quantity of ice at 0C is added to 64.3 g of...Ch. 11 - Steam at 100C was passed into a flask containing...Ch. 11 - Chloroform, CHCl3, a volatile liquid, was once...Ch. 11 - Prob. 11.50QPCh. 11 - White phosphorus, P4, is normally a white, waxy...Ch. 11 - Carbon disulfide, CS2 is a volatile, flammable...Ch. 11 - Prob. 11.53QPCh. 11 - Prob. 11.54QPCh. 11 - Prob. 11.55QPCh. 11 - Prob. 11.56QPCh. 11 - Which of the following substances can be liquefied...Ch. 11 - A tank of gas at 21C has a pressure of 1.0 atm....Ch. 11 - Prob. 11.59QPCh. 11 - Krypton, Kr, has a triple point at 169C and 133...Ch. 11 - Prob. 11.61QPCh. 11 - The heats of vaporization of liquid O2, liquid Ne,...Ch. 11 - For each of the following substances, list the...Ch. 11 - Which of the following compounds would you expect...Ch. 11 - Arrange the following substances in order of...Ch. 11 - Arrange the following substances in order of...Ch. 11 - Methane, CH4, reacts with chlorine, Cl2, to...Ch. 11 - The halogens form a series of compounds with each...Ch. 11 - Prob. 11.69QPCh. 11 - Prob. 11.70QPCh. 11 - List the following substances in order of...Ch. 11 - Arrange the following compounds in order of...Ch. 11 - Classify each of the following by the type of...Ch. 11 - Classify each of the following by the type of...Ch. 11 - Classify each of the following solid elements as...Ch. 11 - Which of the following do you expect to be...Ch. 11 - Prob. 11.77QPCh. 11 - Arrange the following substances in order of...Ch. 11 - Prob. 11.79QPCh. 11 - On the basis of the description given, classify...Ch. 11 - Prob. 11.81QPCh. 11 - Associate each of the solids BN, P4S3, Pb, and...Ch. 11 - Prob. 11.83QPCh. 11 - How many atoms are there in a body-centered cubic...Ch. 11 - Metallic iron has a body-centered cubic lattice...Ch. 11 - Nickel has a face-centered unit cell with all...Ch. 11 - Copper metal has a face-centered cubic structure...Ch. 11 - Barium metal has a body-centered cubic lattice...Ch. 11 - Gold has cubic crystals whose unit cell has an...Ch. 11 - Chromium forms cubic crystals whose unit cell has...Ch. 11 - Assume X has a body-centered cubic lattice with...Ch. 11 - Lead has a face-centered cubic lattice with all...Ch. 11 - Prob. 11.93QPCh. 11 - Metallic barium has a body-centered cubic...Ch. 11 - Prob. 11.95QPCh. 11 - Prob. 11.96QPCh. 11 - Prob. 11.97QPCh. 11 - Prob. 11.98QPCh. 11 - Prob. 11.99QPCh. 11 - Prob. 11.100QPCh. 11 - Prob. 11.101QPCh. 11 - Prob. 11.102QPCh. 11 - Describe the formation of hydrogen bonds in...Ch. 11 - Prob. 11.104QPCh. 11 - Ethylene glycol (CH2OHCH2OH) is a slightly viscous...Ch. 11 - Pentylamine, CH3CH2CH2CH2CH2NH2, is a liquid that...Ch. 11 - Prob. 11.107QPCh. 11 - Prob. 11.108QPCh. 11 - Decide which substance in each of the following...Ch. 11 - Prob. 11.110QPCh. 11 - Iridium metal, Ir, crystallizes in a face-centered...Ch. 11 - The edge length of the unit cell of tantalum...Ch. 11 - Prob. 11.113QPCh. 11 - Rubidium metal has a body-centered cubic structure...Ch. 11 - Calculate the percent of volume that is actually...Ch. 11 - Calculate the percent of volume that is actually...Ch. 11 - For the hydrogen halides and the noble gases, we...Ch. 11 - For the carbon and nitrogen family hydrides, we...Ch. 11 - Prob. 11.119QPCh. 11 - Prob. 11.120QPCh. 11 - Prob. 11.121QPCh. 11 - Prob. 11.122QPCh. 11 - Prob. 11.123QPCh. 11 - Prob. 11.124QPCh. 11 - A geckos toes have been shown to stick to walls...Ch. 11 - Prob. 11.126QPCh. 11 - Prob. 11.127QPCh. 11 - Prob. 11.128QPCh. 11 - Prob. 11.129QPCh. 11 - Prob. 11.130QPCh. 11 - Prob. 11.131QPCh. 11 - Prob. 11.132QPCh. 11 - In an experiment, 20.00 L of dry nitrogen gas, N2,...Ch. 11 - On a particular summer day, the temperature is...Ch. 11 - Prob. 11.135QPCh. 11 - Prob. 11.136QPCh. 11 - Prob. 11.137QPCh. 11 - Prob. 11.138QPCh. 11 - Prob. 11.139QPCh. 11 - Prob. 11.140QPCh. 11 - Rhenium forms a series of solid oxides: Re2O7...Ch. 11 - Shown below is the cubic unit cell of an ionic...Ch. 11 - Prob. 11.143QPCh. 11 - Strontium crystallizes as a face-centered cubic...Ch. 11 - Prob. 11.145QPCh. 11 - Prob. 11.146QPCh. 11 - Prob. 11.147QPCh. 11 - Prob. 11.148QPCh. 11 - Prob. 11.149QPCh. 11 - Prob. 11.150QPCh. 11 - Prob. 11.151QPCh. 11 - Prob. 11.152QPCh. 11 - How much heat must be added to 28.0 g of solid...Ch. 11 - Prob. 11.154QPCh. 11 - Prob. 11.155QPCh. 11 - Prob. 11.156QPCh. 11 - Nanotechnology, or technology utilizing 1100 nm...
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