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supermesh
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Homework Statement
Can entropy change be zero for a closed system in an irreversible process? If yes under what conditions? Thanks!
supermesh said:Can entropy change be zero for a closed system in an irreversible process? If yes under what conditions? Thanks!
The entropy change is zero for an irreversible process because irreversible processes involve energy dissipation, leading to an increase in entropy. This increase in entropy is always positive, and therefore the change in entropy cannot be zero.
No, the entropy change cannot be zero for an irreversible process. Irreversible processes, by definition, involve energy dissipation and an increase in entropy. Therefore, the entropy change will always be positive and cannot be zero.
Entropy change is directly related to the irreversibility of a process. Irreversible processes involve energy dissipation and an increase in entropy, while reversible processes do not. Therefore, the greater the increase in entropy, the more irreversible a process is.
The significance of the entropy change being zero for an irreversible process is that it is a violation of the Second Law of Thermodynamics. This law states that the total entropy of a closed system will always increase over time in an irreversible process. A zero entropy change would mean that the system is not following this law.
The entropy change for an irreversible process is always positive, while the entropy change for a reversible process can be either positive or negative. This is because reversible processes do not involve energy dissipation and can result in a decrease in entropy. However, irreversible processes always lead to an increase in entropy due to energy dissipation.