DL Activity 4.4.3

DL Activity 4.4.3 - DL Activity 4.4.3 What is the...

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DL Activity 4.4.3 What is the difference between a reversible and an irreversible process? All things in the universe tend toward disorder, so an irreversible process is one where the entropy of the universe increases; the process will not spontaneously reverse itself. A reversible process is one where there the entropy of the universe stays the same, so the process can reverse itself spontaneously without adding any energy. If a process occurrs over a very short distance, with a very small change in termperature, or very slowly, the amount of entropy produced is small and it becomes more and more like a reversible process. B) I - Our first process is adiabatic and reversible. Since its adiabatic and doesn't interact with the environment, the amount of entropy in the environment doesn't change. Since its reversible, the amount of entropy in the universe doesn't change, either. So we expect no net change of entropy in the system. We know that the volume is increasing, which would cause
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DL Activity 4.4.3 - DL Activity 4.4.3 What is the...

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