Chemistry: Structure and Properties Custom Edition for Rutgers University General Chemistry
15th Edition
ISBN: 9781269935678
Author: Nivaldo J. Tro
Publisher: Pearson Education
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Chapter 12, Problem 94E
Given that the heat of fusion of water is —6.02 kJ/mol, the heat capacity of H2O (l) is 75.2 J/mol•K, and the heat capacity of H2O (s) is 37.7 J/ mol•K, calculate the heat of fusion of water at —100C.
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111
States of Matter
Understanding conceptual components of the enthalpy of solution
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Ge
A small amount of acetonitrile (CH, CN) is dissolved in a large amount of water. Imagine separating this process into the four stages sketched below. (These
sketches show only a portion of the substances, so you can see the density and distribution of atoms and molecules in them.)
CH,CN
H₂O
B
88
C
Use these sketches to answer the questions in the table below.
The enthalpy of solution AH is negative
soln
when CH3CN dissolves in water. Use this
information to list the stages in order of increasing
enthalpy.
Would heat be absorbed or released if the system
moved from Stage C to D?
What force would oppose or favor the system
moving from Stage C to D? Check all that apply.
1
absorbed
O released
neither absorbed nor released.
none
O ionic bonding force
covalent bonding force…
In a system with an anodic overpotential, the variation of ŋ as a function of
the current density:
1. at low fields is linear 2. at higher fields, it follows Tafel's law
Find the range of current densities for which the overpotential has the same
value as when calculated for cases 1 and 2 (maximum relative difference of
5% with respect to the behavior for higher fields). To which overpotential
range does this correspond?
Data: 10 = 1.5 mA cm², T = 300°C, ẞ = 0.64, R = 8.314 J K 1 mol¹ and F = 96485
C mol-1.
Indicate 10.6 with only one significant figure.
Chapter 12 Solutions
Chemistry: Structure and Properties Custom Edition for Rutgers University General Chemistry
Ch. 12 - Prob. 1SAQCh. 12 - Liquid nitrogen boils at 77 K. This image depicts...Ch. 12 - Taking intermolecular forces into account, which...Ch. 12 - What substance experiences dipole-dipole forces?...Ch. 12 - Prob. 5SAQCh. 12 - Prob. 6SAQCh. 12 - Determine the amount of heat (in kJ) required to...Ch. 12 - Prob. 8SAQCh. 12 - Prob. 9SAQCh. 12 - Prob. 10SAQ
Ch. 12 - Prob. 11SAQCh. 12 - Why do ethanol and dimethyl ether have such...Ch. 12 - Why are intermolecular forces important?Ch. 12 - Prob. 3ECh. 12 - Prob. 4ECh. 12 - Prob. 5ECh. 12 - Which factors cause transitions between the solid...Ch. 12 - Describe the relationship between the state of a...Ch. 12 - Prob. 8ECh. 12 - Prob. 9ECh. 12 - Prob. 10ECh. 12 - Prob. 11ECh. 12 - Prob. 12ECh. 12 - Prob. 13ECh. 12 - What is the ion-dipole force? Why is it important?Ch. 12 - Prob. 15ECh. 12 - Prob. 16ECh. 12 - What is capillary action? How does it depend on...Ch. 12 - Explain what happens during the processes of...Ch. 12 - Why is vaporization endothermic? Why is...Ch. 12 - Prob. 20ECh. 12 - What is the heat of vaporization for a liquid, and...Ch. 12 - Explain the process of dynamic equilibrium. How is...Ch. 12 - What happens to a system in dynamic equilibrium...Ch. 12 - Prob. 24ECh. 12 - Prob. 25ECh. 12 - Prob. 26ECh. 12 - Prob. 27ECh. 12 - Prob. 28ECh. 12 - Prob. 29ECh. 12 - Prob. 30ECh. 12 - Prob. 31ECh. 12 - Examine the heating curve for water in section...Ch. 12 - What is a phase diagram? What is the significance...Ch. 12 - Draw a generic phase diagram and label its...Ch. 12 - Prob. 35ECh. 12 - Determine the kinds of intermolecular forces that...Ch. 12 - Determine the kinds of intermolecular forces that...Ch. 12 - Prob. 38ECh. 12 - Arrange these compounds in order of increasing...Ch. 12 - Prob. 40ECh. 12 - Pick the compound with the highest boiling point...Ch. 12 - Pick the compound with the highest boiling point...Ch. 12 - Prob. 43ECh. 12 - Prob. 44ECh. 12 - Prob. 45ECh. 12 - Prob. 46ECh. 12 - Prob. 47ECh. 12 - Water (a) “wets” some surfaces and beads up on...Ch. 12 - The structures of two isomers of heptanes are...Ch. 12 - Prob. 50ECh. 12 - Water in a glass tube that contains grease or oil...Ch. 12 - When a thin glass tube is put into water, the...Ch. 12 - Which evaporates more quickly: 55 mL of water in a...Ch. 12 - Prob. 54ECh. 12 - Spilling room temperature water over your skin on...Ch. 12 - Prob. 56ECh. 12 - The human body obtains 915 kJ of energy from a...Ch. 12 - Prob. 58ECh. 12 - Suppose that 0.95 g of water condenses on a 75.0 g...Ch. 12 - Prob. 60ECh. 12 - Prob. 61ECh. 12 - Prob. 62ECh. 12 - Prob. 63ECh. 12 - Prob. 64ECh. 12 - How much energy is released when 65.8 g of water...Ch. 12 - Prob. 66ECh. 12 - An 8.5 g ice cube is placed into 255 g of water....Ch. 12 - Prob. 68ECh. 12 - Prob. 69ECh. 12 - Prob. 70ECh. 12 - Prob. 71ECh. 12 - Prob. 72ECh. 12 - Prob. 73ECh. 12 - Prob. 74ECh. 12 - Prob. 75ECh. 12 - The high-pressure phase diagram of ice is shown...Ch. 12 - Prob. 77ECh. 12 - Prob. 78ECh. 12 - Prob. 79ECh. 12 - How is the density of solid water compared to that...Ch. 12 - Prob. 81ECh. 12 - Prob. 82ECh. 12 - Prob. 83ECh. 12 - Prob. 84ECh. 12 - Four ice cubes at exactly 00C with a total mass of...Ch. 12 - Prob. 86ECh. 12 - Draw a heating curve (such as the one in Figure...Ch. 12 - Draw a heating curve (such as the one in Figure...Ch. 12 - Prob. 89ECh. 12 - A sealed flask contains 0.55 g of water at 280C....Ch. 12 - Prob. 91ECh. 12 - Prob. 92ECh. 12 - Prob. 93ECh. 12 - Given that the heat of fusion of water is —6.02...Ch. 12 - The heat of combustion of CH4 is 890.4 kJ/mol, and...Ch. 12 - Prob. 96ECh. 12 - Prob. 97E
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