Chemistry: Atoms First
3rd Edition
ISBN: 9781259638138
Author: Julia Burdge, Jason Overby Professor
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 12, Problem 12.111QP
The phase diagram of helium is shown. Helium is the only known substance that has two different liquid phases: helium-I and helium-II. (a) What is the maximum temperature at which helium-II can exist? (b) What is the minimum pressure at which solid helium can exist? (c) What is the normal boiling point of helium-I? (d) Can solid helium sublime?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
The phase diagram of a hypothetical substance is
(a) Estimate the normal boiling point and freezing point ofthe substance. (b) What is the physical state of the substanceunder the following conditions? (i) T = 150 K, P = 0.2 atm;(ii) T = 100 K, P = 0.8 atm; (iii) T = 300 K, P = 1.0 atm.(c) What is the triple point of the substance? [Section 11.6]
8.
(a) Use the Clausius-Clapeyron equation and calculate the vapor pressure (mm Hg) of fluoroethane at
-80 °C, given that the vapor pressure is 400. mm Hg at a temperature of -46 °C. The enthalpy of vaporization of
fluoroethane is 23.0 kJ/mol.
(b) Calculate the enthalpy of vaporization for a compound if its vapor pressure is 70 mm Hg at -50 °C
and 323 mm Hg at -28 °C.
The phase diagram for elemental sulfur is shown in Figure 6.18. (a) How many allotropes are shown? (b) What is the stable allotrope of sulfur under normal conditions of temperature and pressure? (c) Describe the changes to sulfur as its temperature is increased from 25?C while at 1 atm pressure.
Chapter 12 Solutions
Chemistry: Atoms First
Ch. 12.2 - Prob. 12.1WECh. 12.2 - Prob. 1PPACh. 12.2 - Prob. 1PPBCh. 12.2 - The diagram on the left depicts a system at room...Ch. 12.2 - Prob. 12.2.1SRCh. 12.2 - Given the following information for C6F6,...Ch. 12.2 - Prob. 12.2.3SRCh. 12.2 - Using the result from question 12.2.3 and another...Ch. 12.3 - Prob. 12.2WECh. 12.3 - When silver crystallizes, it forms face-centered...
Ch. 12.3 - The density of sodium metal is 0.971 g/cm3 and the...Ch. 12.3 - Nickel has a face-centered cubic unit cell with an...Ch. 12.3 - A metal crystallizes in a body-centered cubic unit...Ch. 12.4 - How many of each ion are contained within a unit...Ch. 12.4 - Referring to Figure 12.23, determine how many of...Ch. 12.4 - Referring to Figure 12.23, determine how many of...Ch. 12.4 - Prob. 3PPCCh. 12.4 - The edge length of the NaCl unit cell is 564 pm....Ch. 12.4 - Prob. 4PPACh. 12.4 - NiO also adopts the face-centered cubic...Ch. 12.4 - The metal iridium (Ir) crystallizes with a...Ch. 12.4 - Prob. 5PPACh. 12.4 - Copper crystallizes in a face-centered cubic...Ch. 12.4 - Given that the diameter and average mass of a...Ch. 12.5 - (a) Calculate the amount of heat deposited oil the...Ch. 12.5 - Calculate the amount of energy (in kilojoules)...Ch. 12.5 - Determine the final state and temperature of 100 g...Ch. 12.5 - Prob. 6PPCCh. 12.5 - How much energy (in kilojoules) is required to...Ch. 12.5 - Prob. 12.5.2SRCh. 12.6 - Using the following phase diagram, (a) determine...Ch. 12.6 - Use the following phase diagram to (a) determine...Ch. 12.6 - Prob. 7PPBCh. 12.6 - Prob. 7PPCCh. 12.6 - Prob. 12.6.1SRCh. 12.6 - Prob. 12.6.2SRCh. 12 - Prob. 12.1KSPCh. 12 - Prob. 12.2KSPCh. 12 - Prob. 12.3KSPCh. 12 - Prob. 12.4KSPCh. 12 - Explain why liquids, unlike gases, are virtually...Ch. 12 - What is surface tension? What is the relationship...Ch. 12 - Prob. 12.3QPCh. 12 - Prob. 12.4QPCh. 12 - Prob. 12.5QPCh. 12 - Prob. 12.6QPCh. 12 - Prob. 12.7QPCh. 12 - Why does the viscosity of a liquid decrease with...Ch. 12 - Why is ice less dense than water?Ch. 12 - Prob. 12.10QPCh. 12 - Prob. 12.11QPCh. 12 - Prob. 12.12QPCh. 12 - Prob. 12.13QPCh. 12 - Predict which of the following liquids has greater...Ch. 12 - Prob. 12.15QPCh. 12 - Vapor pressure measurements at several different...Ch. 12 - The vapor pressure of liquid X is lower than that...Ch. 12 - Prob. 12.18QPCh. 12 - Prob. 12.19QPCh. 12 - Define the following terms: crystalline solid,...Ch. 12 - Prob. 12.21QPCh. 12 - Classify the solid states in terms of crystal...Ch. 12 - Prob. 12.23QPCh. 12 - Define X-ray diffraction. What are the typical...Ch. 12 - Prob. 12.25QPCh. 12 - What is the coordination number of each sphere in...Ch. 12 - Calculate the number of spheres that would be...Ch. 12 - Prob. 12.28QPCh. 12 - Barium metal crystallizes in a body-centered cubic...Ch. 12 - Prob. 12.30QPCh. 12 - Europium crystallizes in a body-centered cubic...Ch. 12 - Crystalline silicon has a cubic structure. The...Ch. 12 - Prob. 12.33QPCh. 12 - Prob. 12.34QPCh. 12 - Prob. 12.35QPCh. 12 - Prob. 12.36QPCh. 12 - Shown here is a zinc oxide unit cell. What is the...Ch. 12 - Describe and give examples of the following types...Ch. 12 - Prob. 12.39QPCh. 12 - A solid is hard, brittle, and electrically...Ch. 12 - A solid is soft and has a low melting point (below...Ch. 12 - Prob. 12.42QPCh. 12 - Which of the following are molecular solids and...Ch. 12 - Prob. 12.44QPCh. 12 - Prob. 12.45QPCh. 12 - What is a phase change? Name all possible changes...Ch. 12 - What is the equilibrium vapor pressure of a...Ch. 12 - Use any one of the phase changes to explain what...Ch. 12 - Define the following terms: (a) molar heat of...Ch. 12 - Prob. 12.50QPCh. 12 - What can we learn about the intermolecular forces...Ch. 12 - The greater the molar heat of vaporization of a...Ch. 12 - Prob. 12.53QPCh. 12 - A closed container of liquid pentane (bp = 36.1C)...Ch. 12 - What is critical temperature? What is the...Ch. 12 - Prob. 12.56QPCh. 12 - How do the boiling points and melting points of...Ch. 12 - Prob. 12.58QPCh. 12 - Prob. 12.59QPCh. 12 - Prob. 12.60QPCh. 12 - Which of the following phase transitions gives off...Ch. 12 - Prob. 12.62QPCh. 12 - Prob. 12.63QPCh. 12 - Calculate the amount of heat (in kilo joules)...Ch. 12 - Prob. 12.65QPCh. 12 - The molar heats of fusion and sublimation of lead...Ch. 12 - Prob. 12.67QPCh. 12 - How is the rate of evaporation of a liquid...Ch. 12 - Explain why steam at 100C causes more serious bums...Ch. 12 - The following compounds, listed with then- boiling...Ch. 12 - Prob. 12.71QPCh. 12 - Prob. 12.72QPCh. 12 - Explain how waters phase diagram differs from...Ch. 12 - The blades of ice skates are quite thin, so the...Ch. 12 - A length of wire is placed on top of a block of...Ch. 12 - Prob. 12.76QPCh. 12 - A phase diagram of water is shown. Label the...Ch. 12 - Prob. 12.78QPCh. 12 - Prob. 12.79QPCh. 12 - Prob. 12.80QPCh. 12 - Prob. 12.81QPCh. 12 - Prob. 12.82QPCh. 12 - The average distance between base pairs measured...Ch. 12 - A CO2 fire extinguisher is located on the outside...Ch. 12 - What is the vapor pressure of mercury at its...Ch. 12 - Prob. 12.86QPCh. 12 - The liquid-vapor boundary line in the phase...Ch. 12 - Prob. 12.88QPCh. 12 - Prob. 12.89QPCh. 12 - A student is given four solid samples labeled W,...Ch. 12 - Prob. 12.91QPCh. 12 - The diagram shows a kettle of boiling water....Ch. 12 - The south pole of Mars is covered with solid...Ch. 12 - The properties of gases, liquids, and solids...Ch. 12 - The standard enthalpy of formation of gaseous...Ch. 12 - Prob. 12.96QPCh. 12 - Under the same conditions of temperature and...Ch. 12 - The distance between Li+ and Cl is 257 pm in solid...Ch. 12 - Heat of hydration, that is, the heat change that...Ch. 12 - The fluorides of the second period elements and...Ch. 12 - Calculate the H for the following processes at...Ch. 12 - Prob. 12.102QPCh. 12 - Prob. 12.103QPCh. 12 - Ozone (O3) is a strong oxidizing agent that can...Ch. 12 - A sample of limestone (CaCO3) is heated in a...Ch. 12 - Carbon and silicon belong to Group 4A of the...Ch. 12 - Prob. 12.107QPCh. 12 - A 1.20-g sample of water is injected into an...Ch. 12 - What are the advantages of cooking the vegetable...Ch. 12 - A quantitative measure of how efficiently spheres...Ch. 12 - The phase diagram of helium is shown. Helium is...Ch. 12 - The phase diagram of sulfur is shown. (a) How many...Ch. 12 - Prob. 12.113QPCh. 12 - Argon crystallizes in the face-centered cubic...Ch. 12 - Given the phase diagram of carbon, answer the...Ch. 12 - Prob. 12.116QPCh. 12 - Swimming coaches sometimes suggest that a drop of...Ch. 12 - Prob. 12.118QPCh. 12 - Why do citrus growers spray their trees with water...Ch. 12 - Calcium metal crystallizes in a face-centered...Ch. 12 - A student heated a beaker of cold water (on a...Ch. 12 - The compound diclilorodifluoromethane (CCl2F2) has...Ch. 12 - Iron crystallizes in a body-centered cubic...Ch. 12 - Sketch the cooling curves of water from about 110C...Ch. 12 - Prob. 12.125QPCh. 12 - A sampleof water shows the following behavior as...Ch. 12 - A closed vessel of volume 9.6 L contains 2.0 g of...Ch. 12 - The electrical conductance of copper metal...Ch. 12 - Assuming ideal behavior, calculate the density of...Ch. 12 - Explain why drivers are advised to use motor oil...Ch. 12 - Prob. 12.131QPCh. 12 - Silicon used in computer chips must have an...Ch. 12 - Prob. 12.133QP
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- 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_forward6-84 (Chemical Connections 6D) What is the chemical formula for the main component of limestone and marble?arrow_forward(a) Consider a substance where the intermolecular forces hold the molecules in fixed rigid positions. What is the process called when enough heat has been added to the substance so that the molecules begin to flow? (b) Consider a substance where the intermolecular forces hold the molecules in close contact with each other, but the molecules can flow. What is the process called when enough heat has been added to the substance so that the molecules escape each other? (c) Consider a substance where the intermolecular forces hold the molecules in fixed rigid positions. What is the process called when enough heat has been added to the substance so that the molecules can escape each other?arrow_forward
- A 5.4-L closed vessel is filled with 0.46 g of liquid ethanol. This ethanol containing closed vessel is placed in the freezer and reaches the vapor pressure of 6.65 torr at -11 C. (i) Is there any liquid ethanol remained in the closed vessel when the container is removed and warmed to the temperature of 25 C? Justify your answer. (ii) How many grams of liquid ethanol remained in the vessel at 2.0 C? The enthalpy changes of vaporization, AH,vap of ethanol is 40.5 kJ/mol. The molar mass of ethanol is 46.07 g/mol.arrow_forwardThe vapor pressure of benzene is 224 mmHg at 45 °C and 648 mmHg at 75 °C.(a) Find the enthalpy of vaporization of benzene, ∆Hvap (kJ/mol), assuming it is constant. You may also assume that ZV − ZL ≃ 1. B)arrow_forwardExplain why water boils at higher temperature under higher pressure (pure substance saturation temperature depends on pressure). Use knowledge of energy and energy transferring at molecular or atomic level during the phase change of a substance. You do not need to show calculations. • (a) the amount of heat absorbed as 1 kg of saturated liquid water boils at 100°C. (b) the amount of heat released as 1 kg of saturated water vapor condenses. Is a >b, a=b, or aarrow_forward(c) Is methane a solid, liquid, or gas at 1 atm and 0 °C? (d) If solid methane at 1 atm is heated while the pressure is held constant, will it melt or sublime? (e) If methane at 1 atm and 0 °C is compressed until a phase change occurs, in which state is the methane when the compression is complete?arrow_forward1.) The vapor pressure of benzene, C6H6, is 40.1 mmHg at 7.60°C. What is the vapor pressure at 60.6°C if theΔHvap is 31.0 kJ/mol?arrow_forwardThe phase diagram for a pure substance is shown above. Use this diagram and your knowledge about changes of phase to answer the following questions. a) What does point V represent? What characteristics are specific to the system only at point V?. (b) What does each point on the curve between V and W represent? (c) Describe the changes that the system undergoes as the temperature slowly increases from X to Y to Z at 1.0 atmosphere. Note: Please briefly explain A-C. Thank you.arrow_forwardThe AHvap of xenon is 12.57 kJ · mol¬' and its ASvan is 76.15 J · mol¬1 . K-l. What it the boiling point of xenon? Th = °Carrow_forwardElemental carbon has one gas phase, one liquid phase, and two different solid phases, as shown in the phase diagram: (a) On the phase diagram, label the gas and liquid regions.(b) Graphite is the most stable phase of carbon at normal conditions. On the phase diagram, label the graphite phase.(c) If graphite at normal conditions is heated to 2500 K while the pressure is increased to 1010 Pa, it is converted into diamond. Label the diamond phase.(d) Circle each triple point on the phase diagram.(e) In what phase does carbon exist at 5000 K and 108 Pa?(f) If the temperature of a sample of carbon increases from 3000 K to 5000 K at a constant pressure of 106 Pa, which phase transition occurs, if any?arrow_forwardConsider the phase diagram shown below: (a) Identify the different phases that occur in each region of the phase diagram. What is the value of the normal melting point and the normal boiling point for the compound? Identify the triple point and the critical point on the phase diagram. (b) If the dashed line at 1 atm of pressure is followed from 100 to 500 °C, what phase changes will occur (in order of increasing temperature)? (c) What phase changes will occur if the pressure is decreased to 0.100 atm?arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
Recommended textbooks for you
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage LearningIntroductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningIntroduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning
Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:Cengage Learning
Chemistry for Engineering Students
Chemistry
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Cengage Learning
Introductory Chemistry: A Foundation
Chemistry
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Introduction to General, Organic and Biochemistry
Chemistry
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Cengage Learning
Types of Matter: Elements, Compounds and Mixtures; Author: Professor Dave Explains;https://www.youtube.com/watch?v=dggHWvFJ8Xs;License: Standard YouTube License, CC-BY