Cfc cert - Study guides, Class notes & Summaries

CFC Certification spring 2023 Core/73 questions and answers, Graded A!!

Chem 15/03 CFC's | Questions and Correct Solutions Latest Update What are CFC's? - Answer - Chlorofluorocarbons- contain only chlorine, fluorine and carbon- all hydrogens replaced. Describe CFC's? - Answer - Volatile Non toxic Non flammable Stable What were CFC's used in? Why were they stopped being used in these? - Answer - Fridges Aerosol cans Air conditioning Dry cleaning Destroying ozone layer. Where is ozone layer? - Answer - In layer of atmosphere called stratosphere. It ...

cfc universal | Questions and Verified Solutions Latest Update which of following refrigerants has lowest global warming potential ? A. R-134 A B. R407 D C. R410 A D. R600A - Answer - D. R600A which of the following gases is used as the baseline measurement for global warming potential ? A. Ammonia B. Carbon Dioxide C. CFC- 12 D. Propane - Answer - B. Carbon Dioxide Which type of refrigerant typically has the lowest global potential? A. HCFCs B. HFOs C. HFCs D. All are equal - An...

ODP test | Questions and Verified Solutions 2024 Update Chlorofluorocarbon (CFC) refrigerants consist of: - Answer - Chlorine, Fluorine, Carbon What causes a CFC molecule to break down once it reaches the upper atmosphere? - Answer - Ultraviolet light The Ozone layer: - Answer - Reduces ultraviolet radiation. Hydrochlorofluorocarbon (HCFC) refrigerants consists of: - Answer - Hydrogen, Chlorine, Fluorine, Carbon. Which of the following refrigerants causes the least amount of damage to th...

C6e: Depletion of the ozone layer | Questions and verified Solutions Latest Update Explain why the use of CFCs has been banned in the UK - Answer - • society has agreed with scientists' views that CFCs deplete the ozone layer. Describe and explain how scientists' attitude to CFCs has changed: - Answer - • initial enthusiasm for the use of CFCs based upon their inertness • later discovery of ozone depletion and link to presence of CFCs • acceptance by scientists and the rest o...

5) air pollution 2 - ozone and CFC'S | Questions and Verified Solutions Latest Update What is an allotrope? - Answer - Different forms of pure elements An allotrope is a form of an element that is chemically distinct from other forms of the same element. Graphite and diamond are two allotropes of carbon. What is the structure of ozone? - Answer - O3 Where is the 'ozone layer'? - Answer - stratosphere Is ozone in the troposphere good or bad? What about in the stratosphere? - Answer - t...

CFC Certification Practice Test 2/28 questions with correct answers.

Manufacturers often color code the exterior of gauges, on a typical gauge manifold set the low pressure gauge is color coded - blue Approved refrigerant recovery cylinders can be identified by which colors - gray body and yellow top Chlorofluorocarbon (CFC) refrigerants are so named because they contain the elements - chlorine, fluorine, carbon What is being done in the U.S. to stop damage to the stratosphere - enforcing strict emission requirements on incinerators, capturing and ultimate...

CFC's and the ozone layer | Questions and Correct Solutions Latest Update 2024 CFCs are organic molecules that contain 3 elements: - Answer - carbon, chlorine and fluorine CFCs are both non - Answer - toxic or flammable and start off unreactive In water CFCs are - Answer - insoluble CFCs have a low - Answer - boiling point CFCs were used in - Answer - refrigerators, air conditioning systems, propellants and aerosol spray cans In 1974 discovered the truth behind CFCs which was that - Answ...