"Your definitions are all wrong. You don't know what is meant by a closed system. When you find out, tell me what is the difference between a closed system and an isolated system."
It depends on whose defintions you want to use.
Some use "isolated" and "closed" interchangeably. In this case, these are systems in which neither energy nor matter cross the boundary.
Some then differentiate between the two. "Isolated" comes to mean a system in which neither energy nor mass is transferred in or out while "closed" means that only energy is transferred across the boundary.
I see where you are going with this. However, if you choose to use the second set of definitions then you are still missing the boat because the total entropy of a system is only required to increase if it is an isolated system.
In the second set of definitions, where a closed system allows for energy transfer but not mass transfer across the boundary, the entropy of the closed system can still decrease because it is capable of passing energy across the boundary.
If you chose the second set you must then say that entropy can only increase in an isolated system. For in a closed system, where energy can pass the boundary, entropy can decrease.
And I think we could have a discussion over how much mass transfer across the boundary is required for it to even be closed. Since the earth does exchange some mass with space, it is in the strictest sense an open system. If you take the first definition for closed and isolated, then the earth is still an open system solely because of the exchange of energy.
By differentiating between closed and isolated you can at least try and make a cse that the system is closed by the entropy requirement then only holds for an isolated system.
It depends on whose defintions you want to use.
Some use "isolated" and "closed" interchangeably. In this case, these are systems in which neither energy nor matter cross the boundary.
Some then differentiate between the two. "Isolated" comes to mean a system in which neither energy nor mass is transferred in or out while "closed" means that only energy is transferred across the boundary.
I see where you are going with this. However, if you choose to use the second set of definitions then you are still missing the boat because the total entropy of a system is only required to increase if it is an isolated system.
In the second set of definitions, where a closed system allows for energy transfer but not mass transfer across the boundary, the entropy of the closed system can still decrease because it is capable of passing energy across the boundary.
If you chose the second set you must then say that entropy can only increase in an isolated system. For in a closed system, where energy can pass the boundary, entropy can decrease.
And I think we could have a discussion over how much mass transfer across the boundary is required for it to even be closed. Since the earth does exchange some mass with space, it is in the strictest sense an open system. If you take the first definition for closed and isolated, then the earth is still an open system solely because of the exchange of energy.
By differentiating between closed and isolated you can at least try and make a cse that the system is closed by the entropy requirement then only holds for an isolated system.