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(Another contributor wrote:)
"cfc free" is a term which refers to the disuse of a particular chemical compound called chloroflorocarbons. This chemical was commonlly used in many house hold items such as airconditioners, refridgerators, and other freon based items as well as a propelant in aresol cans until it was discovered in the 60's and 70's that cfc's would make their way into the atmosphere and eat away at the ozone layer for years on end.
Yes. They are very useful as the compressed gas expands which cools its surroundings. It is less common now though due to CFC's producing chlorine radicals which depleat the ozone layer heavily via a chain reaction.
The standard refrigerant that substitutes well for Freon 12 and 22 (both CFC's) is CA-125. It is used in automotive air conditioning systems, too.
The CFC's used in refrigerators are freons. They are man made ODS. They are also synthetic compounds.
A refrigerator that does not use CFCs (chlorofluorocarbons) as part of the cooling process.
Refrigerants use CFC's. These were said to be miracle elements until found to be destroying ozone.
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Which chemical used in refrigeration system for destruction of ozone layer?
Chlorofluorocarbons (CFCs) were commonly used in refrigeration systems and were found to be destructive to the ozone layer. Efforts have been made to phase out the use of CFCs and replace them with more environmentally friendly alternatives.
Why earlier CFC emmision were less?
Earlier CFC emissions were less because they were mostly released through industrial processes like refrigeration and aerosol production before regulations limited their use. As awareness of their harmful effects on the ozone layer grew, international agreements such as the Montreal Protocol were put in place to phase out CFC production and use. This has significantly reduced CFC emissions over time.
What is the alternative for CFC?
The alternative for CFC (chlorofluorocarbon) in refrigeration and air conditioning systems is HFC (hydrofluorocarbon) or a more eco-friendly option like natural refrigerants such as ammonia or carbon dioxide. These alternatives are less harmful to the ozone layer and have lower global warming potential than CFCs.
Is r-12 a CFC?
Yes, R-12 is a chlorofluorocarbon (CFC) refrigerant that was commonly used in air conditioning systems and refrigeration units. However, due to its harmful effects on the ozone layer, its production and use have been severely restricted under the Montreal Protocol.
What are CFC gases?
CFC, or chlorofluorocarbon, gases are synthetic compounds made up of chlorine, fluorine, and carbon atoms. They were commonly used in various industries, such as refrigeration and air conditioning, but have been largely phased out due to their harmful impact on the ozone layer, which protects Earth from harmful ultraviolet radiation.
Which atoms in the CFC molecule can destroy thousands of ozone molecules in upper atmosphere?
The CFC molecules are man made chemicals for refrigeration. The molecules on reaction release 2 gases. These gases are Chlorine and Fluorine.
Which chemical used in refrigeration system for destruction of ozone layer?
Chlorofluorocarbons (CFCs) were commonly used in refrigeration systems and were found to be destructive to the ozone layer. Efforts have been made to phase out the use of CFCs and replace them with more environmentally friendly alternatives.
Why earlier CFC emmision were less?
Earlier CFC emissions were less because they were mostly released through industrial processes like refrigeration and aerosol production before regulations limited their use. As awareness of their harmful effects on the ozone layer grew, international agreements such as the Montreal Protocol were put in place to phase out CFC production and use. This has significantly reduced CFC emissions over time.
What is the alternative for CFC?
The alternative for CFC (chlorofluorocarbon) in refrigeration and air conditioning systems is HFC (hydrofluorocarbon) or a more eco-friendly option like natural refrigerants such as ammonia or carbon dioxide. These alternatives are less harmful to the ozone layer and have lower global warming potential than CFCs.
What is the full form of CFC?
CFC stands for "chlorofluorocarbons," which are synthetic compounds used in refrigeration, air conditioning, and aerosol propellants. They are known to deplete the ozone layer and contribute to global warming.
What are advantage and disvantage of refrigeratio?
I'm guessing that's refrigeration. Pro: -Prolongs food life -Easy to use Con: -Food life not absolute -Power requirements Gases used in the refrigeration systems as with air con are cfc based and case environmental damage
Is r-12 a CFC?
Yes, R-12 is a chlorofluorocarbon (CFC) refrigerant that was commonly used in air conditioning systems and refrigeration units. However, due to its harmful effects on the ozone layer, its production and use have been severely restricted under the Montreal Protocol.
What are CFC gases?
CFC, or chlorofluorocarbon, gases are synthetic compounds made up of chlorine, fluorine, and carbon atoms. They were commonly used in various industries, such as refrigeration and air conditioning, but have been largely phased out due to their harmful impact on the ozone layer, which protects Earth from harmful ultraviolet radiation.
Which gas is used instead of CFC in Refrigerators now-a-days?
LPG - Liquid propane gas or other Hydrocarbon derivatives... Soft CFC's, they added hydrogen to the CFC's previously used that were called hard CFC's. By doing this it won't allow the CFC's to travel up to the stratosphere, where it breaks down the ozone. With the added hydrogen will stop it in the troposphere and combine to form compounds such as CO2 + HCl (or HF), therefore not harmful to the ozone. Examples CH2Cl (HCFC-22) or CHCl2-CF2 (HCFC-123)
Do heating and cooling chillers use freon?
"Freon" is a trademark name of the the DuPont Corporation for a series of CFC and HFC refrigerants manufactured and marketed by them - thus, it's only actually Freon if it's manufactured by them and marketed by that name. They all use some form of refrigerant, but not all of them use CFC or HFC refrigerants. There are refrigeration units which use straight ammonia, for example.
How does CFC reach the stratosphere?
CFCs are released into the atmosphere from human activities like air conditioning and refrigeration. Once in the atmosphere, they are carried up into the stratosphere by wind and air circulation. In the stratosphere, CFCs can remain for many years, allowing them to break down ozone molecules through chemical reactions.
When was Angoulême CFC created?
Angoulême CFC was created in 1920.
