Conceptual Physical Science (6th Edition)
6th Edition
ISBN: 9780134060491
Author: Paul G. Hewitt, John A. Suchocki, Leslie A. Hewitt
Publisher: PEARSON
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Chapter 6, Problem 7RAT
To determine
Which material increases its temperature more rapidly.
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Occasionally, huge icebergs are found floating on the ocean's currents. Suppose
one such iceberg has a regular volume and is 120 km long, 35 km wide, and
230 m thick.
(1)
How much heat would be required to melt this iceberg (assumed to be at
0°C) into liquid water at 0°C? (The density of ice is 917 kg/m³. The latent
heat of fusion for ice is 33.5x104 J/kg.)
(ii) Assume the average annual energy consumption by a developed country
in the past years was 9.3 x1o19 J. If this energy were delivered to the
iceberg every year, how many years would it take before the ice is
completely melted?
A house walls that are 16 cm thick and have an average thermal conductivity two times that of cork. Assume there are no windows or doors. The walls'
surface area is 1600000 cm? and their inside surface is at 23°C, while their outside surface is at 6°C.
(Thermal conductivity of cork is 0.042 W/m°C)
(i) Calculate the rate of heat conduction through house walls in watt?
(ii) How many 400W room heaters would be needed to balance the heat transfer due to conduction?(approximate number)
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Chapter 6 Solutions
Conceptual Physical Science (6th Edition)
Ch. 6 - What are the temperatures for freezing water on...Ch. 6 - Is the temperature of an object a measure of the...Ch. 6 - Under what condition does a thermometer measure...Ch. 6 - By how much does the pressure of a gas in a right...Ch. 6 - What pressure would you expect in a rigid...Ch. 6 - Prob. 6RCQCh. 6 - How much energy can be removed from a system at 0...Ch. 6 - Prob. 8RCQCh. 6 - Does a hot object contain thermal energy, or does...Ch. 6 - How does heat differ from thermal energy?
Ch. 6 - What role does temperature have in the direction...Ch. 6 - Why is heat measured in joules?Ch. 6 - How many joules are needed to change the...Ch. 6 - Cite a way in which the energy value of foods is...Ch. 6 - Distinguish among a calorie, a Calorie, and a...Ch. 6 - Which law of thermodynamics consists of the...Ch. 6 - What becomes of heat that is added to a system but...Ch. 6 - Which law of thermodynamics is related to the...Ch. 6 - Prob. 19RCQCh. 6 - Which law of thermodynamics is related to a system...Ch. 6 - When disorder in a system increases, does entropy...Ch. 6 - Under what condition can the entropy of a system...Ch. 6 - Which warms faster when heat is applied: iron or...Ch. 6 - How does the specific heat capacity of water...Ch. 6 - What is the relationship between waters high...Ch. 6 - Why does a bimetallic strip bend with changes in...Ch. 6 - Which generally expands more for an equal increase...Ch. 6 - When the temperature of ice-cold water is...Ch. 6 - What is the reason for ice being less dense than...Ch. 6 - At what temperature do the combined effects of...Ch. 6 - Use the formula above to show that it takes 3000...Ch. 6 - Use the same formula to show that it takes 12,570...Ch. 6 - Show that 3000 cal = 12,570 J, the same quantity...Ch. 6 - Will Maynez burns a 0.6-g peanut beneath 50 g of...Ch. 6 - Consider a 6.0-g steel nail 8.0 cm long and a...Ch. 6 - If you wish to warm 50 kg of water by 20C for your...Ch. 6 - The specific heat capacity of steel is 450 J/kg C....Ch. 6 - In the lab, you submerge 100 g of 40C nails in 200...Ch. 6 - Consider a 1-m bar that expands 0.6 cm when...Ch. 6 - Suppose that the 1.3-km main span of steel for the...Ch. 6 - Imagine people breathing on the length of a...Ch. 6 - Prob. 44TARCh. 6 - Prob. 45TARCh. 6 - How much the lengths of various substances change...Ch. 6 - The precise volume of 200 grams of water in a...Ch. 6 - A friend says that molecules in a mixture of gases...Ch. 6 - A friend says that molecules in a mixture of gases...Ch. 6 - A friend tells you that the surface temperature of...Ch. 6 - Why would you expect the molecules in a gas to...Ch. 6 - Consider two glasses, one filled with water and...Ch. 6 - Which is greater: an increase in temperature of 1C...Ch. 6 - Which contains the greater amount of thermal...Ch. 6 - On which temperature scale does the average...Ch. 6 - Prob. 56ECh. 6 - What will be the temperature of 0C helium gas if...Ch. 6 - Prob. 58ECh. 6 - Instead of saying a red-hot horseshoe contains...Ch. 6 - What is the general direction of the flow of...Ch. 6 - Prob. 61ECh. 6 - Prob. 62ECh. 6 - Which raises the temperature of water more: the...Ch. 6 - If 100 joules of heat is added to a system that...Ch. 6 - If 100 joules of heat is added to a system that...Ch. 6 - Which law of thermodynamics tells us what is most...Ch. 6 - Prob. 67ECh. 6 - Prob. 68ECh. 6 - Entropy is a measure of how energy become...Ch. 6 - In the previous question, there is a reason why...Ch. 6 - What happens to the pressure within a scaled...Ch. 6 - After a car it driven along a road for some...Ch. 6 - Prob. 73ECh. 6 - What does the high specific heat of water have to...Ch. 6 - Why does jello stay cooler for a longer time than...Ch. 6 - Prob. 76ECh. 6 - Which undergoes a greater change in temperature...Ch. 6 - Prob. 78ECh. 6 - Prob. 79ECh. 6 - On cold winter nights in days past, it was common...Ch. 6 - Why does the presence of large bodies of water...Ch. 6 - If the winds at the latitude of San Francisco and...Ch. 6 - Compared with conventional water heaters in the...Ch. 6 - Prob. 84ECh. 6 - In terms of thermal expansion, why is it important...Ch. 6 - Why arc incandescent bulbs typically made of very...Ch. 6 - For many years, a method for breaking boulders was...Ch. 6 - An old technique for separating a pair of nested...Ch. 6 - A metal ball is barely able to past through a...Ch. 6 - Prob. 90ECh. 6 - State an exception to the claim that all...Ch. 6 - How does the combined volume of the billions of...Ch. 6 - A piece of solid iron sinks in a container of...Ch. 6 - In your room are things such as tables, chairs,...Ch. 6 - Why can't you determine whether you are running a...Ch. 6 - The temperature of the Suns interior is about 107....Ch. 6 - If you drop a hot rock into a pail of water, the...Ch. 6 - Structural groaning and creaking noises ate...Ch. 6 - Why is it important that glass mirrors that have a...Ch. 6 - Steel plates are commonly attached to each other...Ch. 6 - After a machinist quickly slips a hot, snugly...Ch. 6 - Suppose that water is used in a thermometer...Ch. 6 - If cooling occurred at the bottom of a pond...Ch. 6 - The motion of molecules that most affects...Ch. 6 - Prob. 2RATCh. 6 - Absolute zero corresponds to a temperature of (a)...Ch. 6 - Thermal energy is normally measured in units of...Ch. 6 - Prob. 5RATCh. 6 - Your garage gets messier day by day. In this case,...Ch. 6 - Prob. 7RATCh. 6 - A bimetallic strip used in thermostats relies on...Ch. 6 - Water at 4C will expand when it is slightly (a)...Ch. 6 - Microscopic slush in water tends to make the water...
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