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The use of CFCs as refrigerant gases has been discontinued - Leaving Cert Chemistry - Question A - 2007
Question A
The use of CFCs as refrigerant gases has been discontinued. Name a group of substances used to replace CFCs as refrigerant gases.
Worked Solution & Example Answer:The use of CFCs as refrigerant gases has been discontinued - Leaving Cert Chemistry - Question A - 2007
Step 1
Name a group of substances used to replace CFCs as refrigerant gases.
Answer
The groups of substances used to replace CFCs include:
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Hydrochlorofluorocarbons (HCFCs): These are compounds that have been used as transitional replacements for CFCs. They have a lower ozone depletion potential compared to CFCs, but they still have some impact on the environment.
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Hydrofluorocarbons (HFCs): These substances do not deplete the ozone layer and are commonly used in refrigeration and air conditioning systems.
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Perfluorocarbons (PFCs): These are another alternative with low toxicity and ozone depletion potential, often used in applications requiring high-performance refrigeration.