Podcast
Questions and Answers
What characteristic of CFCs made them suited for refrigeration and air conditioning systems?
What characteristic of CFCs made them suited for refrigeration and air conditioning systems?
- Inert and essentially nontoxic (correct)
- Flammable and toxic
- Highly reactive with oxygen
- Volatile and chemically unstable
Why were compounds like ammonia and sulfur dioxide phased out of refrigeration systems?
Why were compounds like ammonia and sulfur dioxide phased out of refrigeration systems?
- They were easily recyclable
- They had cooling inefficiencies
- They were toxic and flammable (correct)
- They were inert and nontoxic
What role did Thomas Midgely Jr. play in the development of refrigerants?
What role did Thomas Midgely Jr. play in the development of refrigerants?
- Advocated for the use of toxic compounds
- Developed nontoxic and nonflammable alternatives (correct)
- Researched the toxicity of CFCs
- Discovered the ozone layer
Why did the team at Frigidaire focus on compounds containing carbon and halogens?
Why did the team at Frigidaire focus on compounds containing carbon and halogens?
What is the main danger posed by CFCs to life on Earth?
What is the main danger posed by CFCs to life on Earth?
What was the first compound developed by Midgely and his team?
What was the first compound developed by Midgely and his team?
In which region of the atmosphere is ozone considered a pollutant?
In which region of the atmosphere is ozone considered a pollutant?
What event sparked Rowland's interest in the fate of CFCs in the atmosphere?
What event sparked Rowland's interest in the fate of CFCs in the atmosphere?
Why are ozone molecules in the stratosphere critical for life on Earth?
Why are ozone molecules in the stratosphere critical for life on Earth?
What would happen if CFC molecules released near the surface of Earth reach the stratosphere?
What would happen if CFC molecules released near the surface of Earth reach the stratosphere?
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