state how CFC break ozone layer (in three-fourths lines)
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Here's ur answer!
Chloro- fluro carbons enter the atmosphere because of their excessive use in solvents, aerosol sprays, propellants, refrigerant, and blowing agents for plastic foams. Chloro-fluro carbons are decomposed by ultraviolet rays to highly reactive chlorine, which is produced in its atomic form.
CF2Cl2 (g) --------ultraviolet rays----> CF2Cl (g) + Cl (g)
This free radical (Cl) reacts with ozone and chlorine monoxide is formed.
Co (g) +O3 (g)--->ClO (g) +O2(g)
This causes depletion of ozone, and chlorine monoxidefurther reacts with atomic oxygen to produce more free radicals of chlorine.
ClO (g)+O (g)------>ClO( g)+O2 (g)
Again this free radical (Cl ) destroys ozone and the process continues giving rise to large scale ozone depletion.
Hope it helps! ☺
Thanks! ☺
Here's ur answer!
Chloro- fluro carbons enter the atmosphere because of their excessive use in solvents, aerosol sprays, propellants, refrigerant, and blowing agents for plastic foams. Chloro-fluro carbons are decomposed by ultraviolet rays to highly reactive chlorine, which is produced in its atomic form.
CF2Cl2 (g) --------ultraviolet rays----> CF2Cl (g) + Cl (g)
This free radical (Cl) reacts with ozone and chlorine monoxide is formed.
Co (g) +O3 (g)--->ClO (g) +O2(g)
This causes depletion of ozone, and chlorine monoxidefurther reacts with atomic oxygen to produce more free radicals of chlorine.
ClO (g)+O (g)------>ClO( g)+O2 (g)
Again this free radical (Cl ) destroys ozone and the process continues giving rise to large scale ozone depletion.
Hope it helps! ☺
Thanks! ☺
harshpal:
I think the same answer a very thanks to clear my doubt
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