(i) State the Second Law of Thermodynamics in one or other of its forms.
(ii) The heat capacity per unit volume of a particular solid at low temperatures is equal to CT3; find expressions for its internal energy and entropy S per unit volume (ignoring the effects of thermal expansion).
The Attempt at a Solution
(i) Kelvin's statement: No process is possible whose sole effect is complete conversion of heat into work.
Clausius' statement: No process is possible whose sole effect is to transfer heat from a colder to a hotter body.
(ii) Not sure. Any help would be awesome.