Practice question · True or false
A process can be quasistatic and still be irreversible.
Hints
- Does moving slowly guarantee that no entropy is generated?
- Slow sliding friction is quasistatic but dissipative.
Show the answer
True
Why
True, quasistatic means passing through equilibrium states, which is necessary but not sufficient. A slowly sliding block with friction generates entropy at every step, so it cannot be undone without leaving a trace.
Practise Systems, Walls and State Variables
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