Chemistry: Atoms First
3rd Edition
ISBN: 9781259638138
Author: Julia Burdge, Jason Overby Professor
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 10.1, Problem 10.1.2SR
The label on packaged food indicates that it contains 215 Cal per serving. Convert this amount of energy to joules.
(a) 51.4 J
(b) 5.14 × 104 J
(c) 5.14 × 10−2 J
(d) 9.00 × 102 J
(e) 9.00 × 105 J
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A 45-g aluminum spoon (specific heat 0.88 J/g °C) at 24 °C is placed in 180 mL (180 g) of coffee at 85 °C and the temperature of the two become equal.(a) What is the final temperature when the two become equal? Assume that coffee has the same specific heat as water.(b) The first time a student solved this problem she got an answer of 88 °C. Explain why this is clearly an incorrect answer.
A copper kettle weighs 1.09 kg. (The specific heat of copper is 0.384 J/g·°C)
(a)
What is the heat capacity (in J/°C) of the kettle?
(b)
How much heat (in J) is required to increase the temperature of this kettle from 23.2°C to 98.5°C?
(c)
How much heat (in J) is required to heat this kettle from 23.2°C to 98.5°C if it contains 1.04 L of water (density of 0.997 g/mL and a specific heat of 4.18 J/g·°C across the temperature range)?
A 39 g aluminum spoon (specific heat 0.904 J/g-°C) at 25°C is placed in 178 mL (177 g) of coffee at 84°C and the temperature of the two become equal.
(a) What is the final temperature (in °C) when the two become equal? (Assume that coffee has the same specific heat as water, 4.1801 J/g.°C.)
4.0
°C
(b) The first time a student solved this problem she got an answer of 87°C. Explain why this is clearly an incorrect answer.
O The temperature of the spoon should decrease when it is exposed to the coffee.
O Coffee is always lukewarm by the time you get around to drink it, and so is the spoon.
O The temperature of the coffee cannot increase when a colder spoon is placed in it.
O The student forgot to convert the temperature to kelvins when working this problem.
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Chapter 10 Solutions
Chemistry: Atoms First
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If...Ch. 10 - Prob. 10.26QPCh. 10 - Prob. 10.27QPCh. 10 - Prob. 10.28QPCh. 10 - Prob. 10.1VCCh. 10 - Prob. 10.2VCCh. 10 - Prob. 10.3VCCh. 10 - Prob. 10.4VCCh. 10 - Prob. 10.5VCCh. 10 - Prob. 10.6VCCh. 10 - Prob. 10.7VCCh. 10 - Referring to the process depicted in Figure 10.10,...Ch. 10 - What is the difference between specific heat and...Ch. 10 - Define calorimetry and describe two commonly used...Ch. 10 - A 2.21-kg piece of copper metal is heated from...Ch. 10 - Prob. 10.32QPCh. 10 - A sheet of gold weighing 10.0 g and at a...Ch. 10 - Prob. 10.34QPCh. 10 - A quantity of 2.00 102 mL of 0.862 M HC1 is mixed...Ch. 10 - Prob. 10.36QPCh. 10 - Prob. 10.37QPCh. 10 - Prob. 10.38QPCh. 10 - A 25.95-g sample of methanol at 35.6C is added to...Ch. 10 - Prob. 10.40QPCh. 10 - Prob. 10.41QPCh. 10 - Prob. 10.42QPCh. 10 - Prob. 10.43QPCh. 10 - Prob. 10.44QPCh. 10 - Prob. 10.45QPCh. 10 - Prob. 10.46QPCh. 10 - Prob. 10.47QPCh. 10 - Prob. 10.48QPCh. 10 - Prob. 10.49QPCh. 10 - Prob. 10.50QPCh. 10 - What is meant by the standard-state condition?Ch. 10 - How are the standard enthalpies of an element and...Ch. 10 - What is meant by the standard enthalpy of a...Ch. 10 - Write the equation for calculating the enthalpy of...Ch. 10 - Prob. 10.55QPCh. 10 - Prob. 10.56QPCh. 10 - Prob. 10.57QPCh. 10 - Calculate the heats of combustion for the...Ch. 10 - Calculate the heats of combustion for the...Ch. 10 - Prob. 10.60QPCh. 10 - Prob. 10.61QPCh. 10 - Prob. 10.62QPCh. 10 - From the standard enthalpies of formation,...Ch. 10 - Prob. 10.64QPCh. 10 - Prob. 10.65QPCh. 10 - Prob. 10.66QPCh. 10 - Which is the more negative quantity at 25C: Hf for...Ch. 10 - Prob. 10.68QPCh. 10 - Prob. 10.69QPCh. 10 - Prob. 10.70QPCh. 10 - Prob. 10.71QPCh. 10 - Prob. 10.72QPCh. 10 - Prob. 10.73QPCh. 10 - Prob. 10.74QPCh. 10 - Prob. 10.75QPCh. 10 - Prob. 10.76QPCh. 10 - For the reaction 2C2H6(g)+7O2(g)4CO2(g)+6H2O(g)...Ch. 10 - Prob. 10.78QPCh. 10 - Prob. 10.79QPCh. 10 - Prob. 10.9VCCh. 10 - Prob. 10.10VCCh. 10 - Prob. 10.11VCCh. 10 - Prob. 10.12VCCh. 10 - Explain how the lattice energy of an ionic...Ch. 10 - Specify which compound in each of the following...Ch. 10 - Prob. 10.82QPCh. 10 - Prob. 10.83QPCh. 10 - Prob. 10.84QPCh. 10 - Prob. 10.85QPCh. 10 - Prob. 10.86QPCh. 10 - Prob. 10.87QPCh. 10 - Hydrazine (N2H4) decomposes according to the...Ch. 10 - Prob. 10.89QPCh. 10 - Prob. 10.90QPCh. 10 - Prob. 10.91QPCh. 10 - Prob. 10.92QPCh. 10 - Prob. 10.93QPCh. 10 - Prob. 10.94QPCh. 10 - You are given the following data....Ch. 10 - Prob. 10.96QPCh. 10 - Prob. 10.97QPCh. 10 - Prob. 10.98QPCh. 10 - Prob. 10.99QPCh. 10 - Compare the heat produced by the complete...Ch. 10 - The so-called hydrogen economy is based on...Ch. 10 - Prob. 10.102QPCh. 10 - Prob. 10.103QPCh. 10 - Prob. 10.104QPCh. 10 - Prob. 10.105QPCh. 10 - Prob. 10.106QPCh. 10 - Prob. 10.107QPCh. 10 - Prob. 10.108QPCh. 10 - A certain gas initially at 0.050 L undergoes...Ch. 10 - Prob. 10.110QPCh. 10 - The first step in the industrial recovery of zinc...Ch. 10 - Calculate the standard enthalpy change for the...Ch. 10 - Portable hot packs are available for skiers and...Ch. 10 - Prob. 10.114QPCh. 10 - Prob. 10.115QPCh. 10 - Prob. 10.116QPCh. 10 - Prob. 10.117QPCh. 10 - Prob. 10.118QPCh. 10 - Prob. 10.119QPCh. 10 - Prob. 10.120QPCh. 10 - Prob. 10.121QPCh. 10 - Prob. 10.122QPCh. 10 - Prob. 10.123QPCh. 10 - Prob. 10.124QPCh. 10 - Prob. 10.125QPCh. 10 - Vinyl chloride (C2H3Cl) differs from ethylene...Ch. 10 - Prob. 10.127QPCh. 10 - Prob. 10.128QPCh. 10 - Prob. 10.129QPCh. 10 - Determine the standard enthalpy of formation of...Ch. 10 - Prob. 10.131QPCh. 10 - Prob. 10.132QPCh. 10 - Prob. 10.133QPCh. 10 - Prob. 10.134QPCh. 10 - Prob. 10.135QPCh. 10 - Prob. 10.136QPCh. 10 - Both glucose and fructose arc simple sugars with...Ch. 10 - About 6.0 1013 kg of CO2 is fixed (converted to...Ch. 10 - Experiments show that it takes 1656 kJ/mol to...Ch. 10 - From a thermochemical point of view, explain why a...Ch. 10 - Prob. 10.141QPCh. 10 - Prob. 10.142QPCh. 10 - Prob. 10.143QPCh. 10 - Prob. 10.144QPCh. 10 - Prob. 10.145QPCh. 10 - Prob. 10.146QPCh. 10 - Prob. 10.147QPCh. 10 - Prob. 10.148QPCh. 10 - A drivers manual states that the stopping distance...Ch. 10 - Prob. 10.150QPCh. 10 - Prob. 10.151QPCh. 10 - Prob. 10.152QPCh. 10 - When 1.034 g of naphthalene (C10H8), is burned in...Ch. 10 - Prob. 10.154QPCh. 10 - A gas company in Massachusetts charges 27 cents...Ch. 10 - Prob. 10.156QPCh. 10 - Prob. 10.157QPCh. 10 - According to information obtained from...
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