What is the change in entropy in an adiabatic process?

Solution 34CQ

Theoretically, processes like the isothermal process and the adiabatic process are reversible in nature.

A theoretical adiabatic process is called an isentropic process, as the process occurs too fast and there occurs no net change on entropy of the system.

However, there is always an energy loss associated with the second law of thermodynamics, the rise in entropy, making the process irreversible.

Even though ideally the heat transferred in an adiabatic system is zero, for practical cases there occurs some transfer of heat. If this amount of heat is known, the entropy change can be obtained as:      ∆𝒔=  

Where, ∆𝒔 Represents the change in entropy, Q represents the heat transferred and

t represents the temperature at which the transfer occurs.