thermodynamics

Physics that deals with the relationships and conversions between heat and other forms of energy.

Thermodynamic phenomena and processes.

The general mathematical doctrine of the relations of heat and elasticity, or of temperature, volume, pressure, and mechanical work.

The science which treats of the mechanical action or relations of heat.

The science of the conversions between heat and other forms of energy.

the branch of physics concerned with the conversion of different forms of energy