When chlorofluorocarbons (CFCs) are subjected to UV radiation from the sun this is released; a gas which rapidly destroys ozone.

When chlorofluorocarbons are subjected to ultraviolet radiation ozone destroying blank is released?

Bombarded by the sunÕs ultraviolet energy, CFC molecules break up and release chlorine atoms. Free chlorine atoms then react with ozone molecules, taking one oxygen atom to form chlorine monoxide and leaving an ordinary oxygen molecule.

What happens when CFCs are subjected to sunlight?

The UV light in the stratosphere breaks up the CFCs. They release chlorine, and these free chlorine atoms rip oxygen atoms off of ozone, leaving ordinary oxygen gas.

How do chlorofluorocarbons destroy the ozone layer?

Gaseous CFCs can deplete the ozone layer when they slowly rise into the stratosphere, are broken down by strong ultraviolet radiation, release chlorine atoms, and then react with ozone molecules. See Ozone Depleting Substance.)

What do CFCs do when exposed to UV rays in the atmosphere?

Chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs) and halons destroy the earth's protective ozone layer, which shields the earth from harmful ultraviolet (UV-B) rays generated from the sun. CFCs and HCFCs also warm the lower atmosphere of the earth, changing global climate.

What is ultraviolet radiation and how can you protect against it?

What do you mean by chlorofluorocarbon?

chlorofluorocarbon (CFC), any of several organic compounds composed of carbon, fluorine, and chlorine. When CFCs also contain hydrogen in place of one or more chlorines, they are called hydrochlorofluorocarbons, or HCFCs.

Do CFCs absorb UV radiation?

When a CFC molecule reaches the stratosphere, it eventually absorbs UV radiation, causing it to decompose and release its chlorine atoms. One chlorine atom can destroy up to 100,000 ozone molecules.

How do chlorofluorocarbons CFCs contribute to ozone depletion Brainly?

When ultraviolet light waves (UV) strike CFC* (CFCl3) molecules in the upper atmosphere, a carbon-chlorine bond breaks, producing a chlorine (Cl) atom. The chlorine atom then reacts with an ozone (O3) molecule breaking it apart and so destroying the ozone.

Why are chlorofluorocarbons so damaging to the ozone layer when they are such stable molecules?

Why are chlorofluorocarbons so damaging to the ozone layer when they are such stable molecules at sea level? ... They are very light molecules that rapidly rise into the upper atmosphere and block the radiation that forms ozone.

What is the function of the stratospheric ozone layer?

Stratospheric ozone is a naturally-occurring gas that filters the sun's ultraviolet (UV) radiation. This is typically regarded as 'good' ozone since it reduces the harmful effects of ultraviolet (UV-B) radiation. A diminished ozone layer allows more radiation to reach the Earth's surface.

What is produced when CFC molecules break due to strong UV radiation?

Ozone (O3) is a poisonous gas. ... When CFC's diffuse into the top of the ozone layer they are exposed to intense ultraviolet light, which leads to dissociation of carbon-chlorine bonds. This makes a chlorine radical. (Note that fluorine radicals are not formed because the C-F bond is so strong.)

What atmospheric component absorbs damaging ultraviolet radiation from the sun?

The ozone layer is a thin part of the Earth's atmosphere that absorbs almost all of the sun's harmful ultraviolet light. "Ozone holes" are popular names for areas of damage to the ozone layer.

What is the chemical formula of chlorofluorocarbon?

So the chemical formula for CFC-11 is CFCl3. That is, it has 1 carbon atom, no hydrogen, 1 fluorine atom, and 3 chlorine atoms.

How do chlorofluorocarbons affect Earth's ozone layer?

Chlorofluorocarbons will influence earth's ozone layer when UV radiation hits a CFC particle it makes one chlorine iota split away. The chlorine particle at that point hits an ozone particle comprising of three oxygen iotas and takes one of the oxygen atoms, obliterating the ozone atom and transforming it into oxygen.

What's the difference between stratospheric and tropospheric ozone quizlet?

What is the difference between stratospheric and tropospheric ozone? ... Stratospheric ozone protects Earth from harmful UV radiation. Tropospheric ozone = smog (toxic). This is all measured throughout the atmosphere vertically in a "column" in Dobson Units (300 DU on average, which is equal to one layer about 3mm thick).

What do you know about Montreal Protocol?

The Montreal Protocol on Substances that Deplete the Ozone Layer (the Montreal Protocol) is an international agreement made in 1987. It was designed to stop the production and import of ozone depleting substances and reduce their concentration in the atmosphere to help protect the earth's ozone layer.

What is being done in the US to stop damage to the stratospheric ozone layer?

Capturing and ultimately eliminating the use of chlorofluorocarbons is: being done in the United States to stop damage to the stratospheric ozone layer.

How does the absorption of ultraviolet radiation by the ozone layer help sustain life?

How does the absorption of ultraviolet radiation by the ozone layer help sustain life? ... It keeps a low level of harmful ultraviolet radiation from reaching living organisms.

Why do temperatures decrease in the troposphere and increase in the stratosphere?

The troposphere is heated from the ground, so temperature decreases with altitude. Because warm air rises and cool air sinks, the troposphere is unstable. In the stratosphere, temperature increases with altitude. The stratosphere contains the ozone layer, which protects the planet from the Sun's harmful UV radiation.

How is stratospheric ozone formed Brainly?

Answer Expert Verified

Ozone is formed by the reaction between ultraviolet rays of the sun and atmospheric oxygen. The ultraviolet rays break 1 molecule of into 2 oxygen atoms. These 2 atoms are highly reactive and each atom combines with another molecule of oxygen to form ozone molecule.

Where are chlorofluorocarbons found a coolants?

Yes, they are. Most refrigerants found in air conditioners, refrigerators, and freezers contain fluorocarbons, and many fluorocarbon compounds contain chlorine. Chlorofluorocarbon (CFC) refrigerants were commonly used in equipment manufactured before 1995.

How is good stratospheric ozone formed?

Stratospheric ozone is formed naturally through the interaction of solar ultraviolet (UV) radiation with molecular oxygen (O2). The "ozone layer," approximately 6 through 30 miles above the Earth's surface, reduces the amount of harmful UV radiation reaching the Earth's surface.

What happens when UV radiation reacts with oxygen welding?

In gas shielded arc welding, ozone itself is formed by the interaction of oxygen and ultra-violet (u.v.) radiation emitted from the arc.

What happens when high energy ultraviolet radiation?

When high energy ultraviolet radiations act on the oxygen at the high level of atmosphere ozone is formed. ... When high-energy ultraviolet rays strike ordinary oxygen molecules (O2), they split the molecule into two single oxygen atoms, known as atomic oxygen.

How does UV light break down CFC 11?

CFCs degrade in the stratosphere by photolytic breakdown, releasing highly reactive atoms of chlorine and fluorine, which then form simple compounds such as chlorine monoxide (ClO). ... Ultraviolet light then breaks the O₃ molecules back into O₂ and oxygen atoms by photodissociation.