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JEEMAIN and NEET
>>
Chemistry
>>
States of Matter: Solid State
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Q)
Find out the ratio of the mole-fraction of the Frenkel’s defect in
N
a
C
l
crystal at
4000
K
temperature. The amount of energy needed to form Frenkel’s defects and Schottky defects are respectively
2
e
V
and
4
e
V
.
N
o
t
e
:
1
e
V
=
1.6
×
10
–
19
V
,
k
=
1.23
×
10
–
23
25.71
:
1
51.42
:
1
12.85
:
1
22.35
:
1
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