Through a narrow aperture, diffusion of 2 liters of H2 takes place in 2 hours. Under the same conditions, time required in hours for the diffusion of 1 liter of oxygen is:
A
1
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B
2
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C
3
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D
4
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Solution
The correct option is B 4 rArB=V1/t1V2/t2
=√MBMA
Here, V1=2litres,V2=1litres,t1=2hours
Molecular weight of dioxygen is 32 and that of dihydrogen is 2. rArB