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Question: > Assuming that O2 molecule is spherical in shape with radius 2 Å, the percentage of the volume of O...

Assuming that O2 molecule is spherical in shape with radius 2 Å, the percentage of the volume of O2 molecules to the total volume of gas at S.T.P. is :

A

0.09 %

B

0.9 %

C

0.009 %

D

0.045 %

Answer

0.09 %

Explanation

Solution

(1)

Required % = 43\frac{4}{3} ×π×(2×10−8)3×6×102322400×100.\frac{\pi \times \left( 2 \times 10^{- 8} \right)^{3} \times 6 \times 10^{23}}{22400} \times 100.