Solid State Question 99
Question: A crystalline solid:
Options:
A) changes abruptly from solid to liquid when heated
B) has no definite melting point
C) undergoes deformation of its geometry easily
D) has an irregular three-dimensional arrangement
E) softens slowly
Show Answer
Answer:
Correct Answer: A
Solution:
[a] In crystalline solid, there is perfect arrangement of the constituent particles only at 0 K.
As the temperature increases, the chance that a lattice site may be unoccupied by an ion increases.
As the number of defects increases with temperature, solid changes into liquid.
BETA
