what is thermodynamics? justify that it is the science to compute energy, energy and entropy?

what is thermodynamics? justify that it is the science to compute energy, energy and entropy

Definition of Thermodynamics

Thermodynamics is the science that deals with the conversion of heat into mechanical energy. It is based upon observations of common experience, which have been formulated into thermodynamic laws. These laws govern the principles of energy conversion. The applications of the thermodynamic laws and principles are found in all fields of energy technology, notably in steam and nuclear power plants, internal combustion engines, gas turbines, air conditioning, refrigeration, gas dynamics, jet propulsion, compressors, chemical process plants, and direct energy conversion devices.

Generally thermodynamics contains four laws;

1. Zeroth law: Deals with thermal equilibrium and establishes a concept of temperature.

2. The First law: Throws light on concept of internal energy.

3. The Second law: Indicates the limit of converting heat into work and introduces the principle of increase of entropy.

4. Third law: Defines the absolute zero of entropy.

These laws are based on experimental observations and have no mathematical proof. Like all physical

laws, these laws are based on logical reasoning.

Thermodynamics is the study of energy, energy and entropy.

The whole of heat energy cannot be converted into mechanical energy by a machine. Some portion of

heat at low temperature has to be rejected to the environment.

The portion of heat energy, which is not available for conversion into work, is measured by entropy.

The part of heat, which is available for conversion into work, is called energy.

Thus, thermodynamics is the science, which computes energy, energy and entropy.