Ans. Thermodynamics  process :- A thermodyamics process is said to occur if the thermodyamics variable of a system undergo a change with time. Different type of thermodynamics processes are as follows :- 1) Isothermal process :- It is a thermodynamic process which occurs at a constant temperature. 2) Isobaric process :- It is a thermodynamics process which occurs at a constant pressure. 3) Isochronic process :- It is a thermodynamic process which occurs at a constant volume. 4) Adiabatic process :- It is a thermodynamic process in which there is no exchange of heat energy between system and surrounding.