Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN: 9781305578296
Author: John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher: Cengage Learning
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Textbook Question
Chapter 9, Problem 12RQ
CFCs are more harmful to the stratospheric ozone layer than HCFCs because they contain _____.
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While discussing the reasons the use of R-134a is being discontinued in some countries: Technician A says that the chemical composition of the refrigerant has been proven to be harmful to the earth’s ozone layer. Technician B says that R-134a leaks contribute to the undesirable greenhouse effect. Who is correct?
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Chapter 9 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 9 - What is the difference between the oxygen we...Ch. 9 - Describe the difference between good and bad...Ch. 9 - Explain the process of ozone depletion resulting...Ch. 9 - Which refrigerants have a 0 ODP? A. HFCs B. HCFCs...Ch. 9 - An increase in the natural greenhouse effect that...Ch. 9 - True or False: Only CFCs and HCFCs contribute...Ch. 9 - Explain what a global warming potential (GWP) is.Ch. 9 - Prob. 8RQCh. 9 - Describe the difference a direct and an indirect...Ch. 9 - What measurement or index takes into...
Ch. 9 - Describe the differences between CFCs, HCFCs,...Ch. 9 - CFCs are more harmful to the stratospheric ozone...Ch. 9 - Prob. 13RQCh. 9 - Describe the difference between an azeotropic...Ch. 9 - Why are there more safety precautions for R-410A...Ch. 9 - The three most popular synthetic oils in the...Ch. 9 - What is the name of the conference that was held...Ch. 9 - What agency ofthe federal government is charged...Ch. 9 - Explain the differences between active and passive...Ch. 9 - Are federal excise taxes on reclaimed refrigerants...Ch. 9 - Prob. 21RQCh. 9 - Prob. 22RQCh. 9 - To reclaim refrigerant meas to__________.Ch. 9 - Explain what is meant by a nonpressurized recovery...Ch. 9 - Prob. 25RQCh. 9 - Prob. 26RQCh. 9 - The standard that a refrigerant must meet after it...Ch. 9 - Briefly describe the types of piercing valves used...Ch. 9 - Briefly describe an oil-less refrigerant recovery...
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- The rating of the ability of a gasoline to burn smoothly in an internal combustion is its a. octane rating. b. boiling point. c. energy value. d. fuel density. e. molar mass.arrow_forwardWhat is different in bitween Ozone and Smog.arrow_forwardDifferentiate complete combustion from incomplete combustion.arrow_forward
- What are higher-efficiency refrigerant blends that can be used as long-term replacements for R-22 in residential and light-commercial air-conditioning applications?arrow_forwardTrue or False? In an HCCI engine, combustion immediately and simultaneously produces a steady flame across the mixture.arrow_forwardDescribe the difference a direct and an indirect global warming potential.arrow_forward
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