Question
Chemistry Question on Chemical Kinetics
Among the following the incorrect statement is
A
Density of crystals remains unaffected due to Frenkel defect.
B
In BCC unit cell the void space is 32%.
C
Density of crystals decreases due to Schottky defect.
D
Electrical conductivity of semiconductors and metals increases with increase in temperature.
Answer
Electrical conductivity of semiconductors and metals increases with increase in temperature.
Explanation
Solution
The electrical resistance of metals depends upon temperature. Electrical resistance decreases with decrease in temperature and becomes zero near the absolute temperature. Material in this state is said to possess super conductivity.