PHYSICAL SCIENCE (PB) >CUSTOM<
11th Edition
ISBN: 9781307364545
Author: Tillery
Publisher: MCG/CREATE
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Chapter 4, Problem 14AC
To determine
The law of
First law of thermodynamics
Second law of thermodynamics
Third law of thermodynamics
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A- The Physicist's term for the amount of disorder is entropy (True or False)
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Iron is melted during the recycling process.
(a) How much heat must be transferred to each kilogram of iron to bring it to its melting point, 1,536°C, from room temperature, 20°C?_________ J(b) About how many cups of coffee could you make with this much energy (1 cup = 73,600 J)? __________cups
Firewood is a traditional biomass energy source. To heat a 1500 sq.ft. house in Canada we need about 14,500 kWh of energy per year. If the energy density of firewood is 4.5 kWh/kg, and the energy efficiency of your wood furnace is 60%, about how much firewood would you need to heat such house for one year?
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Chapter 4 Solutions
PHYSICAL SCIENCE (PB) >CUSTOM<
Ch. 4 - 1. The Fahrenheit thermometer scale is
a. more...Ch. 4 - Prob. 2ACCh. 4 - Prob. 3ACCh. 4 - 4. External energy refers to the
a. energy that...Ch. 4 - Prob. 5ACCh. 4 - The specific heat of copper is 0.093 cal/gC, and...Ch. 4 - 7. The specific heat of water is 1.00 cal/gC°, and...Ch. 4 - Prob. 8ACCh. 4 - Prob. 9ACCh. 4 - Prob. 10AC
Ch. 4 - Prob. 11ACCh. 4 - Prob. 12ACCh. 4 - 13. The energy supplied to a system in the form of...Ch. 4 - Prob. 14ACCh. 4 - Prob. 15ACCh. 4 - Prob. 16ACCh. 4 - Prob. 17ACCh. 4 - Prob. 18ACCh. 4 - Prob. 19ACCh. 4 - Prob. 20ACCh. 4 - 21. The transfer of heat that takes place because...Ch. 4 - 22. Latent heat is “hidden” because it
a. goes...Ch. 4 - Prob. 23ACCh. 4 - 24. A heat engine is designed to
a. move heat from...Ch. 4 - 25. The work that a heat engine is able to...Ch. 4 - Prob. 26ACCh. 4 - Prob. 27ACCh. 4 - Prob. 28ACCh. 4 - 29. The cheese on a hot pizza takes a long time to...Ch. 4 - 30. The specific heat of copper is roughly three...Ch. 4 - Prob. 31ACCh. 4 - 32. Conduction best takes place in a
a. solid.
b....Ch. 4 - 33. Convection best takes place in a (an)
a....Ch. 4 - Prob. 34ACCh. 4 - Prob. 35ACCh. 4 - Prob. 36ACCh. 4 - Prob. 37ACCh. 4 - 38. At temperatures above freezing, the...Ch. 4 - Prob. 39ACCh. 4 - Prob. 40ACCh. 4 - Prob. 41ACCh. 4 - 42. The second law of thermodynamics tells us that...Ch. 4 - 43. The heat death of the universe in the future...Ch. 4 - 1. What is temperature? What is heat?
Ch. 4 - 2. Explain why most materials become less dense as...Ch. 4 - 3. Would the tight packing of more insulation,...Ch. 4 - 4. A true vacuum bottle has a double-walled,...Ch. 4 - 5. Why is cooler air found in low valleys on calm...Ch. 4 - 6. Why is air a good insulator?
Ch. 4 - 7. Explain the meaning of the mechanical...Ch. 4 - 8. What do people really mean when they say that a...Ch. 4 - 9. A piece of metal feels cooler than a piece of...Ch. 4 - 10. Explain how the latent heat of fusion and the...Ch. 4 - 11. What is condensation? Explain, on a molecular...Ch. 4 - 12. Which provides more cooling for a Styrofoam...Ch. 4 - 13. Explain why a glass filled with a cold...Ch. 4 - 14. Explain why a burn from 100°C steam is more...Ch. 4 - Briefly describe, using sketches as needed, how a...Ch. 4 - 16. Which has the greatest entropy: ice, liquid...Ch. 4 - 17. Suppose you use a heat engine to do the work...Ch. 4 - 1. Considering the criteria for determining if...Ch. 4 - Prob. 2FFACh. 4 - 3. Gas and plasma are phases of matter, yet gas...Ch. 4 - Prob. 4FFACh. 4 - 5. This chapter contains information about three...Ch. 4 - Prob. 6FFACh. 4 - 7. Explore the assumptions on which the “heat...Ch. 4 - Prob. 1IICh. 4 - Prob. 1PEBCh. 4 - Prob. 2PEBCh. 4 - Prob. 3PEBCh. 4 - 4. A 1.0 kg metal head of a geology hammer strikes...Ch. 4 - 5. A 60.0 kg person will need to climb a 10.0 m...Ch. 4 - 6. A 50.0 g silver spoon at 20.0°C is placed in a...Ch. 4 - 7. If the silver spoon placed in the coffee in...Ch. 4 - 8. How many minutes would be required for a 300.0...Ch. 4 - Prob. 9PEBCh. 4 - 10. A 1.00 kg block of ice at 0°C is added to a...Ch. 4 - Prob. 11PEBCh. 4 - Prob. 12PEBCh. 4 - Prob. 13PEBCh. 4 - 14. A heat engine converts 100.0 cal from a supply...Ch. 4 - Prob. 15PEB
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- Give an explanation of how food energy (calories) can be viewed as molecular potential energy (consistent with me atomic and molecular definition of internal energy).arrow_forwardIdentify the type of energy transferred to your body in each of the following as either internal energy, heat transfer, or doing work: (a) basking in sunlight (b) eating food; (c) riding an elevator to a higher floor.arrow_forwardThe U.S. penny is now made of copper-coated zinc. Can a calorimetric experiment be devised to test for the metal content in a collection of pennies? If so, describe the procedure.arrow_forward
- 1. What are the main types of heat production?arrow_forwardIron is melted during the recycling process. (a) How much heat must be transferred to each kilogram of iron to bring it to its melting point, 1,536°C, from room temperature, 20°C?________J(b) About how many cups of coffee could you make with this much energy (1 cup = 73,600 J)? _____cipsarrow_forwardQuestion 20 Which of the following is a reliable investigation to study how heat is transferred by conduction? A Investigating why the water in a pool heats up as the sun shines on it. B Investigating why the upstairs of a house is warmer than the basement. C Investigating why the handle of a pot will heat up as food is cooking over an open fire. D Investigating why the bottom of a loaf of bread browns faster than the top of a loaf of bread as an oven temperature is increased.arrow_forward
- What is Latent heat? Define two types of latent heat.arrow_forwardThe First Law of Thermodynamics• Define the first law of thermodynamics.• Describe how conservation of energy relates to the first law of thermodynamics.• Identify instances of the first law of thermodynamics working in everyday situations, including biological metabolism.• Calculate changes in the internal energy of a system, after accounting for heat transfer and work done.arrow_forward1. If electricity costs Php 4.50 per kw-hr, how much does it cost to use a 250 watt light bulb for 7 hrs? 2. A typical human consumes 2500 Kcal of energy during a day. Say you decided to run stairs all day. How much energy, in Joules, would you burn in climbing stairs all day?arrow_forward
- 1.Is it true that all matters increase temperature when heat is added? 2.use the concept of the Law of Conservation of Heat Energy to explain what happened to the system below. A very hot metal was placed in a container filled with freezing cold water.arrow_forward1. On a hypothetical temperature scale X, the ice point is assigned the reading 400 and the steam point 1600. For another scale Y, the assigned values are -200 and 1800, respectively. (a) Convert a reading of 250X to the Y scale. (b) Find the temperature which is the same for both scales.arrow_forwardDefine the term heat. Name and state the SI unit of heat?arrow_forward
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