An adiabatic process is a process in which no heat is exchanged between the system and the surroundings. A spontaneous process is a process that occurs without the need for external intervention. In this article, we will discuss the entropy change in a spontaneous adiabatic process.



The Second Law of Thermodynamics states that the entropy of an isolated system always increases over time. Entropy is a measure of the disorder or randomness of a system. In other words, the Second Law of Thermodynamics states that in any spontaneous process, the total entropy of the system and its surroundings always increases.



A spontaneous adiabatic process is a process in which no heat is exchanged between the system and the surroundings, and the process occurs spontaneously. In other words, the system undergoes a change in which its entropy increases without the need for external intervention.



In a spontaneous adiabatic process, the entropy change of the system and its surroundings is always positive. This is because the Second Law of Thermodynamics states that the total entropy of the system and its surroundings always increases. As no heat is exchanged between the system and the surroundings, the change in entropy is due to the change in the internal energy of the system.



In conclusion, the entropy change in a spontaneous adiabatic process is always positive. This is because the Second Law of Thermodynamics states that the total entropy of the system and its surroundings always increases. The change in entropy is due to the change in the internal energy of the system as no heat is exchanged between the system and the surroundings.

entropy change in adiabatic process is taken to be 0,because as the process is adiabatic there is no extra supply of heat :that's make no change of enthalpy