.
High temperature
Low temperature
High thermal energy
Weak cohesive forces
Definite and characteristic heat of fusion
Isotropic nature
A regular periodically repeated pattern of arrangement of constituent particles in the entire crystal
A true solid
Graphite
Quartz glass
Chrome alum
Silicon carbide
Same in all directions
Different in different directions
Cannot be measured
Always zero
On heating they may become crystalline at certain temperature
They may become crystalline on keeping for a long time
Amorphous solids can be moulded by heating
They are anisotropic in nature
A regular arrangement of constituent particles observed over a short distance in the crystal lattice
A regular arrangement of constituent particles observed over a long distance in the crystal lattice
Same arrangement of constituent particles in different directions
Different arrangement of constituent particles in different directions
London forces
Dipole-dipole interactions
Covalent bonds
Coulombic forces
S02
I2
Diamond
H2O
6
10
8
12
A and B
C and D
A and C
B and D
74
68
32
26