Chemistry Basics......
If there are 27 molecules of in an isolated system and UV radiation is passed through the system, then how many molecules of will be formed?
The answer is 18.
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1 solution
As we know that one single molecule of O 2 gets split into 2 individual atoms of free oxygen [ O ] , and combines with two other molecules of O 2 to form two molecules of O 3 .
This can be defined as 3 ( O 2 ) → 2 ( O 3 )
So according to the ratio, 27 O 2 will form 18 O 3