Chemistry: Principles and Practice
3rd Edition
ISBN: 9780534420123
Author: Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher: Cengage Learning
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Question
Chapter 11, Problem 11.7QE
Interpretation Introduction
Interpretation:
The effect of humidity affecting the efficiency of cooling by perspiration has to be explained.
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Students have asked these similar questions
what quantity of heat would be evolved if 5.68g of liquid aluminum freezes at its normal freezing point?
Based on the actual value for AHvap of water, how many kJ of energy are needed to convert 5.00
kg of water into steam at 100 °C?
2.
22) 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 correct
Chapter 11 Solutions
Chemistry: Principles and Practice
Ch. 11 - Prob. 11.1QECh. 11 - Prob. 11.2QECh. 11 - Prob. 11.3QECh. 11 - Prob. 11.4QECh. 11 - Prob. 11.5QECh. 11 - Why does a perspiring body achieve greater cooling...Ch. 11 - Prob. 11.7QECh. 11 - Prob. 11.8QECh. 11 - Prob. 11.9QECh. 11 - Prob. 11.10QE
Ch. 11 - Prob. 11.11QECh. 11 - Prob. 11.12QECh. 11 - Prob. 11.13QECh. 11 - Prob. 11.14QECh. 11 - Prob. 11.15QECh. 11 - Prob. 11.16QECh. 11 - Prob. 11.17QECh. 11 - Prob. 11.18QECh. 11 - Prob. 11.19QECh. 11 - Prob. 11.20QECh. 11 - The compounds ethanol (C2H5OH) and dimethyl ether...Ch. 11 - Prob. 11.22QECh. 11 - Prob. 11.23QECh. 11 - An amorphous solid can sometimes be converted to a...Ch. 11 - Prob. 11.25QECh. 11 - Prob. 11.26QECh. 11 - Prob. 11.27QECh. 11 - Prob. 11.28QECh. 11 - Prob. 11.29QECh. 11 - Prob. 11.30QECh. 11 - Prob. 11.31QECh. 11 - Prob. 11.32QECh. 11 - Prob. 11.33QECh. 11 - Prob. 11.34QECh. 11 - Prob. 11.35QECh. 11 - Prob. 11.36QECh. 11 - Prob. 11.37QECh. 11 - Prob. 11.38QECh. 11 - What is the enthalpy change when a 1.00-kg block...Ch. 11 - Prob. 11.40QECh. 11 - Prob. 11.41QECh. 11 - Prob. 11.42QECh. 11 - Prob. 11.43QECh. 11 - Prob. 11.44QECh. 11 - Prob. 11.45QECh. 11 - Prob. 11.46QECh. 11 - Prob. 11.47QECh. 11 - Prob. 11.48QECh. 11 - Identify the kinds of intermolecular forces...Ch. 11 - Prob. 11.50QECh. 11 - Prob. 11.51QECh. 11 - Prob. 11.52QECh. 11 - Prob. 11.53QECh. 11 - Prob. 11.54QECh. 11 - Prob. 11.55QECh. 11 - Prob. 11.56QECh. 11 - Prob. 11.57QECh. 11 - Prob. 11.58QECh. 11 - Prob. 11.59QECh. 11 - Identify the kinds of forces that are most...Ch. 11 - Arrange the following substances in order of...Ch. 11 - Arrange the following substances in order of...Ch. 11 - Prob. 11.63QECh. 11 - Silicon carbide, SiC, is a very hard, high-melting...Ch. 11 - Prob. 11.65QECh. 11 - Calcium oxide consists of a face-centered cubic...Ch. 11 - Prob. 11.67QECh. 11 - Prob. 11.68QECh. 11 - Prob. 11.69QECh. 11 - Prob. 11.70QECh. 11 - Prob. 11.71QECh. 11 - Prob. 11.72QECh. 11 - Prob. 11.73QECh. 11 - Prob. 11.74QECh. 11 - Lithium hydride (LiH) has the sodium chloride...Ch. 11 - Cesium iodide crystallizes as a simple cubic array...Ch. 11 - Palladium has a cubic crystal structure in which...Ch. 11 - Prob. 11.78QECh. 11 - Prob. 11.79QECh. 11 - Prob. 11.80QECh. 11 - Prob. 11.81QECh. 11 - Prob. 11.82QECh. 11 - Prob. 11.83QECh. 11 - Prob. 11.84QECh. 11 - Prob. 11.85QECh. 11 - The coordination number of uniformly sized spheres...Ch. 11 - Prob. 11.87QECh. 11 - Prob. 11.88QECh. 11 - Prob. 11.89QECh. 11 - Prob. 11.90QECh. 11 - Prob. 11.91QECh. 11 - Prob. 11.93QECh. 11 - Prob. 11.94QECh. 11 - A 1.50-g sample of methanol (CH3OH) is placed in...Ch. 11 - Prob. 11.96QECh. 11 - Prob. 11.97QECh. 11 - Prob. 11.98QECh. 11 - Prob. 11.99QECh. 11 - Prob. 11.100QECh. 11 - Prob. 11.103QE
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