Correct Answer : Option (D) : Steady-state process
Explanation : The following are some of the most commonly studied thermodynamic processes :
i) Heat does not lose or acquire energy in an adiabatic process.
ii) At a constant enthalpy, the isenthalpic process occurs.
iii) The isobaric process happens when the pressure remains constant.
iv) The isochoric process (also known as isometric/isovolumetric) happens at a constant volume.
v) At a constant temperature, an isothermal process occurs.
vi) Internal energy does not change in a steady-state operation.
vii) Isentropic process: adiabatic reversible process with constant entropy.
