What is meant by specific heat capacity ? How will prove experimentally that different substance have different speific heat capacities?

Explanation

(i) The quantity of heat energy required to raise a temperature of unit mass of a substance through `1^(@)C` is called speific heat capacity of a substance.
(ii) Three soild spheres of equal masses of material iron, copper and lead are placed in boiling water for same time. After removing then simultaneously, they are palced on the wax try together .
(iii) The sphere which absrobs more heat can melt more wax .
(iv) Iron sphere melts more wax and goes deep into it ray. The lead sphere goes less deep into the molten wax. The copper sphere goes to intermediatedepth.
(v) This indicates that the heat absorbed by different material differs. The is specific heat capacity of metals .
(vi) Spefifc heat capacity is denoted by letter 'c' . In CGS it is measured in `cal//g^(@)C`, while in MKS , it is measured in `j//kg^(@)C` .