First Law of Thermodynamics || Second Law of Thermodynamics || Third Law of Thermodynamics || Kelvin Statement || Plank’s Statement || Celsius Statement Etc.
First Law of Thermodynamics
The First law of Thermodynamics is the law of conservation of energy. It can be states as, ” The energy can neither be created nor be distroyed it can only be converted from one form to another form”.
- The amount of work done (dw) which is performed.
- The amount of heat (dQ) which is transferd.
- The internal energy or intrinsic (du) which is started in the system.
Thus, the first law of thermodynamics Mathmaticaly can be stated sa, ” When the amount of heat be (dQ) is transfer to or by the system and work done on or by the system. Using some amount of heat and the rest heat this used for chenging the internal energy of the system.
Second Law of Thermodynamics
The first law of thermodynamics does not tells that the conversion of heat into mechanical works governing this property an other law comes which is known as the second law of thermodynamics.
Kelvin Statement :
Acording to Kelvin statement it is impossible to continuous supply of work from a body by cooling in it to a lower temprature that of its surrounding.
Plank’s Statement :
Celsius Statement :
Other Definition of Second Law of Thermodynamics :
Third Law of Thermodynamics