General Chemistry: Atoms First
2nd Edition
ISBN: 9780321809261
Author: John E. McMurry, Robert C. Fay
Publisher: Prentice Hall
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Chapter 10, Problem 10.59SP
How much energy in kilojoules is released when 25.0 g of ethanol vapor at 93.0 °C is cooled to −11.0 °C? Ethanol has mp = −114.1 °C, bp = 78.3 °C, ΔHvap = 38.56 kJ/mol, and ΔHfusion = 4.93 kJ/mol. The molar heat capacity is 112.3 J/(K · mol) for the liquid and 65.6 J/(K · mol) for the vapor.
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111
States of Matter
Understanding conceptual components of the enthalpy of solution
0/5
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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 10 Solutions
General Chemistry: Atoms First
Ch. 10.1 - The dipole moment of HF is = 1.83 D, and the bond...Ch. 10.1 - Prob. 10.2PCh. 10.1 - Prob. 10.3CPCh. 10.1 - Prob. 10.4CPCh. 10.2 - Prob. 10.5PCh. 10.2 - Prob. 10.6PCh. 10.4 - Prob. 10.7PCh. 10.4 - Chloroform (CHCl3) has Hvap = 29.2 kJ/mol and Svap...Ch. 10.5 - Prob. 10.9PCh. 10.5 - Prob. 10.10P
Ch. 10.8 - Prob. 10.11PCh. 10.8 - Prob. 10.12PCh. 10.8 - Prob. 10.13PCh. 10.8 - Prob. 10.14CPCh. 10.9 - Prob. 10.15PCh. 10.9 - Prob. 10.16CPCh. 10.11 - Prob. 10.17PCh. 10.11 - Prob. 10.18PCh. 10.11 - Prob. 10.19CPCh. 10.11 - Prob. 10.20PCh. 10.11 - Prob. 10.21PCh. 10 - Prob. 10.22CPCh. 10 - Prob. 10.23CPCh. 10 - Zinc sulfide, or sphalerite, crystallizes in the...Ch. 10 - Perovskite, a mineral containing calcium, oxygen,...Ch. 10 - Prob. 10.26CPCh. 10 - Prob. 10.27CPCh. 10 - Prob. 10.28CPCh. 10 - Prob. 10.30CPCh. 10 - Prob. 10.31CPCh. 10 - Why dont all molecules with polar covalent bonds...Ch. 10 - Prob. 10.33SPCh. 10 - Prob. 10.34SPCh. 10 - Prob. 10.35SPCh. 10 - Methanol (CH3OH; bp = 65 C) boils nearly 230 C...Ch. 10 - Prob. 10.37SPCh. 10 - Which of the following substances would you expect...Ch. 10 - Prob. 10.39SPCh. 10 - Prob. 10.40SPCh. 10 - The dipole moment of ClF is 0.887 D and the...Ch. 10 - Prob. 10.42SPCh. 10 - Prob. 10.43SPCh. 10 - The class of ions PtX42, where X is a halogen, has...Ch. 10 - Prob. 10.45SPCh. 10 - Prob. 10.46SPCh. 10 - Prob. 10.47SPCh. 10 - Prob. 10.48SPCh. 10 - Prob. 10.49SPCh. 10 - Prob. 10.50SPCh. 10 - Prob. 10.51SPCh. 10 - Mercury has mp = 38.8 C and bp = 356.6 C. What, if...Ch. 10 - Prob. 10.53SPCh. 10 - Prob. 10.54SPCh. 10 - Prob. 10.55SPCh. 10 - Prob. 10.56SPCh. 10 - Prob. 10.57SPCh. 10 - Prob. 10.58SPCh. 10 - How much energy in kilojoules is released when...Ch. 10 - Draw a molar heating curve for ethanol, C2H5OH,...Ch. 10 - Prob. 10.61SPCh. 10 - Prob. 10.62SPCh. 10 - Prob. 10.63SPCh. 10 - Prob. 10.64SPCh. 10 - Prob. 10.65SPCh. 10 - Prob. 10.66SPCh. 10 - Prob. 10.67SPCh. 10 - Prob. 10.68SPCh. 10 - Prob. 10.69SPCh. 10 - Prob. 10.70SPCh. 10 - Prob. 10.71SPCh. 10 - Prob. 10.72SPCh. 10 - Prob. 10.73SPCh. 10 - Prob. 10.74SPCh. 10 - Prob. 10.75SPCh. 10 - Prob. 10.76SPCh. 10 - Which of the substances diamond, Hg, Cl2, glass,...Ch. 10 - Prob. 10.78SPCh. 10 - Prob. 10.79SPCh. 10 - Prob. 10.80SPCh. 10 - Prob. 10.81SPCh. 10 - Prob. 10.82SPCh. 10 - Prob. 10.83SPCh. 10 - Prob. 10.84SPCh. 10 - Prob. 10.85SPCh. 10 - Prob. 10.86SPCh. 10 - Prob. 10.87SPCh. 10 - Prob. 10.88SPCh. 10 - Sodium has a density of 0.971 g/cm3 and...Ch. 10 - Prob. 10.90SPCh. 10 - Prob. 10.91SPCh. 10 - Prob. 10.92SPCh. 10 - Prob. 10.93SPCh. 10 - Prob. 10.94SPCh. 10 - Prob. 10.95SPCh. 10 - Look at the phase diagram of CO2 in Figure 10.29,...Ch. 10 - Prob. 10.97SPCh. 10 - Prob. 10.98SPCh. 10 - Prob. 10.99SPCh. 10 - Prob. 10.100SPCh. 10 - Prob. 10.101SPCh. 10 - Does solid oxygen (Problem 10.99) melt when...Ch. 10 - Prob. 10.103SPCh. 10 - Prob. 10.104SPCh. 10 - Prob. 10.105SPCh. 10 - Prob. 10.106SPCh. 10 - Prob. 10.107SPCh. 10 - Prob. 10.108CHPCh. 10 - Prob. 10.109CHPCh. 10 - Prob. 10.110CHPCh. 10 - Prob. 10.111CHPCh. 10 - Prob. 10.112CHPCh. 10 - Prob. 10.113CHPCh. 10 - Prob. 10.114CHPCh. 10 - Prob. 10.115CHPCh. 10 - Magnesium metal has Hfusion = 9.037 kJ/mol and...Ch. 10 - Prob. 10.117CHPCh. 10 - Prob. 10.118CHPCh. 10 - Prob. 10.119CHPCh. 10 - Prob. 10.120CHPCh. 10 - Prob. 10.121CHPCh. 10 - Prob. 10.122CHPCh. 10 - Prob. 10.123CHPCh. 10 - Calculate the percent volume occupied by the...Ch. 10 - Prob. 10.125CHPCh. 10 - Prob. 10.126CHPCh. 10 - Prob. 10.127CHPCh. 10 - A drawing of the NaCl unit cell is shown in Figure...Ch. 10 - Niobium oxide crystallizes in the following cubic...Ch. 10 - Prob. 10.130CHPCh. 10 - One form of silver telluride (Ag2Te) crystallizes...Ch. 10 - Prob. 10.132CHPCh. 10 - Prob. 10.133MPCh. 10 - Prob. 10.134MPCh. 10 - A group 3A metal has a density of 2.70 g/cm3 and a...Ch. 10 - Prob. 10.136MP
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