What are CFC gasses?

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What are CFC gasses?

Chlorofluorocarbons (CFCs) are nontoxic, nonflammable chemicals containing atoms of carbon, chlorine, and fluorine. They are used in the manufacture of aerosol sprays, blowing agents for foams and packing materials, as solvents, and as refrigerants.

Is CFC gas harmful to humans?

CFCs can generally impair the human immune system, and scientists have linked direct expose to problems with the central nervous system . These problems might include difficulty breathing or injury to the heart, kidneys and liver.

What are CFCs and why were they produced?

CFCs were developed as ideal gases used as refrigerants for refrigerators. Because of their special characteristics, inflammability and non-toxicity to human beings, CFCs were massively produced and consumed, particularly in developed countries, after the 1960’s.

Are CFC banned?

In 1976, under the Toxic Substances Control Act, the EPA banned commercial manufacturing and use of CFCS and aerosol propellants. This was later superseded by broader regulation by the EPA under the Clean Air Act to address stratospheric ozone depletion.

Which gas is formed on lightning?

The rapid heating and cooling of the gases within a lightning bolt produces nitric oxide (NO), which combines with oxygen to create nitrogen dioxide (NO2), especially when it’s moving downwind. Nitric oxide and nitrogen dioxide are referred to together as nitrogen oxides (NOx), a mixture of gases.

What chemicals are in lightning?

Tropospheric Chemistry The two primary gases (NO and NO2) are formed during the lightning discharge when the air is heated to 30,000 degrees inside the lightning channel. Since air is made up of approximately 80% N2 and 20% O2, these molecules breakup into nitrogen and oxygen atoms.

Is the sun hotter than lightning?

In fact, lightning can heat the air it passes through to 50,000 degrees Fahrenheit (5 times hotter than the surface of the sun). …

What are the four types of lightning?

Types of Lightning

  • Cloud-to-Ground (CG) Lightning.
  • Negative Cloud-to-Ground Lightning (-CG)
  • Positive Cloud-to-Ground Lightning (+CG)
  • Cloud-to-Air (CA) Lightning.
  • Ground-to-Cloud (GC) Lightning.
  • Intracloud (IC) Lightning.

What is forked lightning?

forked lightning ​Definitions and Synonyms ​noun uncountable. DEFINITIONS1. lightning that moves across the sky and divides into separate parts when it is near the ground. Synonyms and related words. Relating to storms.

What color of lightning is the most powerful?

What Color Lightning is the Strongest?

  • Blue – this color of lightning is an indication that a high precipitation storm is occurring with chances of hail.
  • Purple – this color of lightning occurs when there is high humidity in the atmosphere and is typically accompanied by high precipitation.

What is the rarest lightning?

Ball lightning, also called globe lightning, a rare aerial phenomenon in the form of a luminous sphere that is generally several centimetres in diameter. It usually occurs near the ground during thunderstorms, in close association with cloud-to-ground lightning.