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A compount AB has a rock type structure ...

A compount `AB` has a rock type structure with `A:B=1:1`. The formula weight of `AB` is `6.023 Y am u` and the closed `A-B` distance is `Y^(1//3) nm.`
`(i)` Find the density of lattice.
`(ii)` If the density of lattice is found to be `20 kg m^(-3)`, then predict the type of defect.

Text Solution

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The correct Answer is:
(a)`5 kg m^(-3)` (b) As the oberved density of AB is higher than the calculated `(5.02 kg) m^(-3)` which is possible is some foregin species occupy interstitial space hence, the defect is metal excess defect.
(a) `5kg m^(-3)`
(b) As the observed density of AB is higher than the calculated (5.0kg)`m^(-3)` which is pos sible if some foreign species occupy intersitital spaces hence, the defect is metal excess defect.
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