Weber showed that the specific heat increases rapidly with increasing temperature.
The density of solid sulphur is 2 062 to 2'070, and the specific heat 0.1712; it is a bad conductor of electricity and becomes negatively electrified on friction.
It is of course in such a case necessary to know the specific heat of the liquid in the calorimeter.
In the more complex gases the specific heat varies considerably with temperature; only in the case of monatomic gases does it remain constant.
He regarded these anomalies as solely due to the chemical nature of the elements, and ignored or regarded as insignificant such factors as the state of aggregation and change of specific heat with temperature.