An Introduction to Physical Science
14th Edition
ISBN: 9781305079137
Author: James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher: Cengage Learning
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Chapter 5, Problem 3MC
To determine
The largest unit of the heat energy.
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A gasoline engine has a power output of 170 kW (about 2.28×105 hp ). Its thermal efficiency is 22.0 %. How much heat must be supplied to the engine per second? Express your answer in joules per second. How much heat is discarded by the engine per second? Express your answer in joules per second.
How much heat Q, in Joules, is required to warm up 0.5 kg of water from 20 °C to 30 °C ?
(Water specific heat is 4,190 J/kg°C)
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Question 5
Add 100 joules of heat to a system that does 60 joules of work. Determine the change in internal energy.
OJ.
100 J.
Air conditioners sold in the United States are given a seasonal energy-efficiency ratio (SEER) rating that consumers can use to compare different models. A SEER rating is the ratio of heat pumped to energy input, similar to a COP but using English units, so a higher SEER rating means a more efficient model. You can determine the COP of an air conditioner by dividing the SEER rating by 3.4.
For inside temperature 24 ∘C and outside temperature 35 ∘C when you'd be using air conditioning, estimate the theoretical maximum SEER rating of an air conditioner. (New air conditioners must have a SEER rating that exceeds 13, quite a bit less than the theoretical maximum, but there are practical issues that reduce efficiency.)
Chapter 5 Solutions
An Introduction to Physical Science
Ch. 5.1 - We talk about temperature, but what does it...Ch. 5.1 - Are there any limits on the lowest and highest...Ch. 5.1 - Show that a temperature of 40 is the same on both...Ch. 5.2 - Prob. 1PQCh. 5.2 - Most substances contract with decreasing...Ch. 5.3 - What is specific about specific heat?Ch. 5.3 - Prob. 2PQCh. 5.3 - Prob. 5.2CECh. 5.3 - How much heat must be removed from 0.20 kg of...Ch. 5.4 - What are the three methods of heat transfer?
Ch. 5.4 - Prob. 2PQCh. 5.5 - Prob. 1PQCh. 5.5 - Prob. 2PQCh. 5.6 - In the ideal gas law, pressure is directly...Ch. 5.6 - Prob. 2PQCh. 5.6 - Prob. 5.4CECh. 5.7 - Prob. 1PQCh. 5.7 - Prob. 2PQCh. 5 - Prob. AMCh. 5 - Prob. BMCh. 5 - Prob. CMCh. 5 - Prob. DMCh. 5 - Prob. EMCh. 5 - Prob. FMCh. 5 - Prob. GMCh. 5 - Prob. HMCh. 5 - Prob. IMCh. 5 - Prob. JMCh. 5 - Prob. KMCh. 5 - Prob. LMCh. 5 - Prob. MMCh. 5 - Prob. NMCh. 5 - Prob. OMCh. 5 - Prob. PMCh. 5 - Prob. QMCh. 5 - Prob. RMCh. 5 - Prob. SMCh. 5 - Prob. TMCh. 5 - Prob. UMCh. 5 - Prob. VMCh. 5 - Prob. WMCh. 5 - Prob. XMCh. 5 - Prob. YMCh. 5 - Prob. 1MCCh. 5 - Which unit of the following is smaller? (5.2) (a)...Ch. 5 - Prob. 3MCCh. 5 - Prob. 4MCCh. 5 - Prob. 5MCCh. 5 - Prob. 6MCCh. 5 - Prob. 7MCCh. 5 - Which of the following has a definite volume but...Ch. 5 - If the average kinetic energy of the molecules in...Ch. 5 - When we use the ideal gas law, the temperature...Ch. 5 - Prob. 11MCCh. 5 - Prob. 12MCCh. 5 - When a bimetallic strip is heated, it bends away...Ch. 5 - Prob. 2FIBCh. 5 - Prob. 3FIBCh. 5 - Prob. 4FIBCh. 5 - Prob. 5FIBCh. 5 - Prob. 6FIBCh. 5 - Prob. 7FIBCh. 5 - The ___ phase of matter has no definite shape, and...Ch. 5 - Prob. 9FIBCh. 5 - In the ideal gas law, pressure is ___ proportional...Ch. 5 - Prob. 11FIBCh. 5 - Prob. 12FIBCh. 5 - When the temperature changes during the day, which...Ch. 5 - Prob. 2SACh. 5 - The two common liquids used in liquid-in-glass...Ch. 5 - An older type of thermostat used in furnace and...Ch. 5 - Heat may be thought of as the middleman of energy....Ch. 5 - When one drinking glass is stuck inside another,...Ch. 5 - Prob. 7SACh. 5 - What does the specific heat of a substance tell...Ch. 5 - When eating a piece of hot apple pie, you may find...Ch. 5 - Prob. 10SACh. 5 - When you exhale outdoors on a cold day, you can...Ch. 5 - Compare the SI units of specific heat and latent...Ch. 5 - Give two examples each of good thermal conductors...Ch. 5 - Prob. 14SACh. 5 - Prob. 15SACh. 5 - Thermal underwear is made to fit loosely. ( Fig....Ch. 5 - What determines the phase of a substance?Ch. 5 - Give descriptions of a solid, a liquid, and a gas...Ch. 5 - Prob. 19SACh. 5 - How does the kinetic theory describe a gas?Ch. 5 - Prob. 21SACh. 5 - Prob. 22SACh. 5 - Prob. 23SACh. 5 - In terms of kinetic theory, explain why a...Ch. 5 - Prob. 25SACh. 5 - Prob. 26SACh. 5 - Prob. 27SACh. 5 - Prob. 28SACh. 5 - What can be said about the total entropy of the...Ch. 5 - Prob. 30SACh. 5 - Prob. 31SACh. 5 - Prob. 1VCCh. 5 - Prob. 1AYKCh. 5 - Prob. 2AYKCh. 5 - Prob. 3AYKCh. 5 - Prob. 4AYKCh. 5 - Prob. 5AYKCh. 5 - Prob. 6AYKCh. 5 - When you freeze ice cubes in a tray, there is a...Ch. 5 - Prob. 8AYKCh. 5 - Prob. 1ECh. 5 - Prob. 2ECh. 5 - Prob. 3ECh. 5 - Prob. 4ECh. 5 - Researchers in the Antarctic measure the...Ch. 5 - Prob. 6ECh. 5 - A college student produces about 100 kcal of heat...Ch. 5 - Prob. 8ECh. 5 - A pound of body fat stores an amount of chemical...Ch. 5 - Prob. 10ECh. 5 - On a brisk walk, a person burns about 325 Cal/h....Ch. 5 - Prob. 12ECh. 5 - How much heat in kcal must be added to 0.50 kg of...Ch. 5 - Prob. 14ECh. 5 - (a) How much energy is necessary to heat 1.0 kg of...Ch. 5 - Equal amounts of heat are added to equal masses of...Ch. 5 - How much heat is necessary to change 500 g of ice...Ch. 5 - A quantity of steam (300 g) at 110C is condensed,...Ch. 5 - Prob. 19ECh. 5 - A fire breaks out and increases the Kelvin...Ch. 5 - A cylinder of gas is at room temperature (20C)....Ch. 5 - A cylinder of gas at room temperature has a...Ch. 5 - A quantity of gas in a piston cylinder has a...Ch. 5 - If the gas in Exercise 23 is initially at room...
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