Admin Table of Contents
- 1 What does CFC and HCFC have in common?
- 2 Is HCFC the same as CFC?
- 3 How do CFCs and HFCs compare to one another?
- 4 What does CFC HCFC and HFC represent?
- 5 Why CFC and HCFC refrigerants are to be replaced explain?
- 6 What are CFCs HCFCs and HFCs?
- 7 What are CFC’s and why are they harmful?
- 8 What does HCFC mean or stand for?
What does CFC and HCFC have in common?
CFC molecules contain chlorine atoms, and each atom can destroy thousands of ozone molecules. While HFCs are only weak ozone-depleting substances, they are, like CFCs and HCFCs, strong greenhouse gases.
Is HCFC the same as CFC?
The key difference between CFC and HCFC is that the CFC contains only carbon, fluorine and chlorine atoms whereas HCFC contains hydrogen, carbon, fluorine and chlorine atoms. HCFC is a good substitute for this harmful substance.
What characteristics of CFCs and HCFCs make them more likely?
What characteristics of CFCs make them more likely than most other chlorine compounds to reach the stratosphere? CFCs neither dissolve in water nor break down into compounds that dissolve in water, so they do not rain out of the atmosphere. Which refrigerant is an HCFC? Which Refrigerant is a chlorine-free refrigerant?
How do CFCs and HFCs compare to one another?
Because they contain hydrogen, HCFCs break down more easily in the atmosphere than do CFCs. Therefore, HCFCs have less ozone depletion potential, in addition to less global-warming potential. HFCs do not contain chlorine and do not contribute to destruction of stratospheric ozone.
What does CFC HCFC and HFC represent?
Chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs) and halons destroy the earth’s protective ozone layer, which shields the earth from harmful ultraviolet (UV-B) rays generated from the sun. Hydrofluorocarbons (HFCs) also act to warm the planet.
Are HFC ODS?
HFCs have zero ODP because they do not contain chlorine. A table of all ozone-depleting substances (http://www.epa.gov/ozone/science/ods/index.html) shows their ODPs, GWPs, and CAS numbers.
Why CFC and HCFC refrigerants are to be replaced explain?
HCFC’s are a class of chemicals used to replace CFC’s. Because of their chlorine atom, HCFC’s also deplete the ozone layer. They will be phased out. HFC’s do not deplete the ozone layer, but some HFC’s have the potential to contribute to global warmng.
What are CFCs HCFCs and HFCs?
What was the main concern with the CFC refrigerants?
Chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs) and halons destroy the earth’s protective ozone layer, which shields the earth from harmful ultraviolet (UV-B) rays generated from the sun. CFCs and HCFCs also warm the lower atmosphere of the earth, changing global climate.
HCFCs contain chlorine, fluorine, and carbon (just like CFC), but also contain a hydrogen atom which decreases their stability and gives them a shorter lifetime in the atmosphere. They mostly break down before they reach the ozone. Like CFCs, HCFCS may be referred as “Freon”.
What are CFC’s and why are they harmful?
Chlorofluorocarbons, also known as CFCs, consist of chemical compounds made up of chlorine, fluorine and carbon. CFCs are particularly harmful when released into the atmosphere because of their destructive reaction with O-zone particles, which provide the Earth with a protective layer against UV radiation.
What does HCFC mean or stand for?
What does HCFC stand for? HCFC stands for Harris County Flood Control District (est. 1937; Texas)
How are CFC’s harmful?
CFCs contribute to the loss of the protective ozone layer, which blocks ultraviolet rays from the sun. This exposes more people to UV radiation, which can cause skin cancer. According to the University of Georgia, one in five Americans develops skin cancer in his or her lifetime.