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Slope =  = 2.88  10-2 cm-3
2.88 10-2 cm-3 = (C-1) 
= (C- 1) 9.87 10-4 cm-3
(C- 1) = 2.88 10-2 / 9.87x 10-4 = 29.18
C = 30.18
Further ,  = 9.87 10-4 cm-3
Vmono = 1 / C 9.87 10-4 cm-3
= 1/ 30.18 9.87 10-4
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= 33.57 cm3
= 0.03357 dm3
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Number of N2 molecules = (0.03357/22.4) 6.02 1023
= 9.022 1020 molecules
The total area = 9.022 1020 16.2 10-20 m2
= 146.156 m2/g (contact area of one N2 molecule =16.2 10-20 m2 )
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Now we shall consider the instrumental methods. These may be further classified as spectroscopic methods and microscopic methods. |
