[DOC] [TLE] CFCs - The Ozone Hole [PAR] Chlorofluorocarbon (CFC) is an organic compound that contains carbon, ... A 
common subclass is the hydrochlorofluorocarbons (HCFCs), which contain ... But 
it turns out that CFCs are an excellent way of introducing chlorine into the ozone 
layer. ... One of these compounds, HFC-134a, is now used in place of CFC-12 in
... [DOC] [TLE] Chlorofluorocarbons Refrigerants, CFC Refrigerants: Ozone Layer ... [PAR] Jan 15, 2010 ... Chlorofluorocarbon refrigerants or CFC refrigerants are being used in many ... 
Chlorofluorocarbons (CFCs): Refrigerants that Cause Ozone Layer Depletion ... 
This article describes the process of damaging effects of CFCs. ... in the vapor 
compression cycle to Don't leave the refrigerator doors open! [DOC] [TLE] In Protecting the Atmosphere, Choices Are Costly and Complex ... [PAR] Mar 7, 1989 ... The chemical products of these reactions go on to destroy ozone, a minor but ... 
and chlorine, and is easy to manufacture from two common chemicals. ... The 
proposed replacement for CFC-11, a chlorofluorocarbon used to make ... most 
damaging to the ozone layer are being banned: CFC-11 and CFC-12... [DOC] [TLE] the refrigerator industry - Epa - US Environmental Protection Agency [PAR] CFCs were believed to be major depleters of the ozone layer in the stratosphere, 
... refrigerator production and 13.4% of the world's exports of refrigerators, had 
chosen a technological .... Since World War II the predominant refrigerant used 
had been a freon gas, usually the .... environmental damage upon product 
disposal. [DOC] [TLE] Physics 251: What is Physics Good For? - WebPhysics [PAR] The central element in the operation of a refrigerator (or a freezer) is a fluid, 
called a ... become apparent that these chemicals damage the Earth's ozone 
layer. ... from the cooler region (inside of the 'fridge) to the warmer region (the 
kitchen). ... FREON-12 (the refrigerant used most commonly from the Freon family
) has a... [DOC] [TLE] Freon 12 - Western Oregon University [PAR] By 1855 the man made ice was being used in breweries and meat plants10, but 
the new ... For a temperature of about 40C inside the refrigerator, the refrigerant 
needs to boil .... After CFC-12 decomposes, free chlorine radical can destroy 
ozone. ... It was originally believed by Molina and Rowland that ozone depletion 
by... [DOC] [TLE] CFCs and Cooling Equipment: The Size of the Problem [PAR] mental damage. A few of us ... Ozone Layer and its later revi- sions, to ... CFCs 
are used extensively as ... their common uses to eliminate. .... Some faculty 
thought that the work .... On the left is a sketch of the heat pump in a kitchen 
refrigerator. [DOC] [TLE] Open-Ended Problem: The CFC-Free, Energy-Efficient Design of a ... [PAR] used as refrigerants, are causing ozone depletion, and .... and build the most 
energy efficient, CFC-free domestic refrigerator on the ... our labs and some 
materials furnished by our supplier which I believe will be ..... damaging to the 
ozone layer as CFCs are. Two of the most commonly used CFCs are R-1 1 which 
has the. [DOC] [TLE] Articles about Cfcs - tribunedigital-baltimoresun - Collections [PAR] Proof reported that CFCs cause depletion of ozone ... Kitchen research bears fruit
: Lemons provide substitute for ozone-eating CFCs ... scientific discovery: Ray 
Turner reached into his refrigerator for a lemon and came away with ... for a 
widely used industrial chemical blamed for the erosion of Earth's protective 
ozone layer. [DOC] [TLE] Ozone Depletion and Climate Change [PAR] Nov 6, 2015 ... Ozone depletion and climate change have usually been thought of as ... and 
other halocarbons, which do not deplete the ozone layer but are greenhouse 
gases, are currently commonly used as alternatives to CFCs and HCFCs . ... unit 
in the living room; the kitchen's fire extinguisher and refrigerator; and... [DOC] [TLE] Claim: What would have happened to the ozone layer if ... [PAR] Mar 8, 2014 ... Ozone depletion by chlorofluorocarbons (CFCs) was first proposed by ... and 
models showed that it could damage ozone  there

Question: CFCs, believed to damage the ozone layer, are commonly used in this kitchen appliance
Answer: Refrigerator