Chlorofluorocarbons - Study guides, Class notes & Summaries

List 6 desirable characteristics of a refrigerant correct answer: High latent heat Non Toxic Non Flammable Non Corrosive Chemically stable Lubricant soluble Name a Chlorine-free refrigerant correct answer: HFCs What type of refrigerant are R-11 and R-12 correct answer: Halocarbons Name 3 types of refrigerant compounds and the element components of each correct answer: CFCs= chlorofluorocarbons HCFCs= hydrochlorofluorocarbons HFCs= hydrofluorocarbons What is an azeotropi...

AEST study guide questions and answers 100% pass science of soils and field crops agronomy plant grown for appearance and beauty ornamental management of agricultural resources ag economics science of fruits, vegetables, and ornamentals horticulture The science of animal growth, care, and management. animal science Growing and managing living things in water aquaculture application of mechanical and other engineering principles in agriculture ag engineering grass used ...

What is a blend of two or more components who's equilibrium vapor phase & liquid phase compositions are the same at a given pressure? - Answer- Azeotrope This is a halogenated hydrocarbon containing one or more of the three halogens: fluorine, chlorine, and bromine - Answer- Halocarbon Chlorofluorocarbons (CFCs) consist of? - Answer- Chlorine, fluorine, carbon CFCs are chemically very stable because they contain no? - Answer- Hydrogen CFCs are damaging to what layer of the ozone lay...

What percentage of the people in the United States are farmers? 2 Careers in agriscience include which of the following? processing and recreation and food production Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:15 Full screen Brainpower Read More By the year 2010, the world population of humans is estimated will be 7 billion What is the meaning of the Greek word bios? life The science involved in the cultivation, prop...

APES Unit 9 Review Question and answers 2023/2024 verified to passstratospheric ozone layer - correct answer is important to the evolution of life on Earth and the continued health and survival of life on Earth Stratospheric ozone depletion - correct answer is caused by anthropogenic factors, such as chlorofluorocarbons (CFCs), and natural factors, such as the melting of ice crystals in the atmosphere at the beginning of the Antarctic spring how does a decrease in stratospheric ozone affec...

AEST AGTECH EXAM QUESTIONS AND ANSWERS ALREADY PASSED What percentage of the people in the United States are farmers? 2 Careers in agriscience include which of the following? processing and recreation and food production By the year 2010, the world population of humans is estimated will be 7 billion What is the meaning of the Greek word bios? life The science involved in the cultivation, propagation, processing and marketing of things like flowers and vegetables is known as h...

Epa 608 Core Universal Verified Questions With Correct Solutions Refrigeration technicians who violate the Clean Air Act can: - CORRECT ANSWER-D) all of the above. After 1995, any supplies of CFC refrigerant to service existing units in the USA can only come from: - CORRECT ANSWER-A) recovery and recycling. Refrigerant that is recovered can be returned to: - CORRECT ANSWER-A) the same system or other systems owned by the same person without restriction. Refrigerant can not be called ...

Epa 608 Universal Elaborated Questions And Reviewed Answers Ozone - CORRECT ANSWER-03 atoms Air we breathe - CORRECT ANSWER-O2 Length of ozone - CORRECT ANSWER-7-28 miles above atmosphere ODP - CORRECT ANSWER-Ozone Depletion Potential What causes odp - CORRECT ANSWER-Chlorine containing refrigerants How many ozone molecules are destroyed by 1 chlorine molecule - CORRECT ANSWER-100,000 Montreal Protocol (1987) - CORRECT ANSWER-phase out of ozone depleting substances. UV radiation ri...

Quiz 1 WX 201 with correct Answers Graded A+ At night, when the weather is extremely cold and dry, atmospheric pressure in the trophosphere - increases with increasing altitude. - remains constant with increasing altitude. - stays the same, then drops suddenly. - first increases, then decreases with increasing altitude. - decreases with increasing altitude. decreases with increasing altitude. Which of the following is MOST likely associated with fair weather? - a cold front - ...

WX201 Exam 1 (Units 1-4) Questions and Answers Aerosol In the atmosphere, tiny solid or liquid suspended particles of various compostion afe called: Photosynthesis Sinks of CO2 include Ozone (O3) Occurs at about 75,000 ft and absorbs UV rays Air can hold more water vapor when it is warm Meteorology is the study of: the atmosphere Since the turn of this century, CO2 in the atmosphere has: Been increasing in concentration The only substance near the earths surf...