Entropy statement question

[robel45]

For all adiabatic processes the entropy of the system does not change (speaking in general) Is this statement correct?

 

[mfig]

That statement is not correct. Entropy can be both transferred with heat and also generated by irreversibilities within the system. Adiabatic processes eliminate the first possibility.

 

[Chestermiller]

In other words, the entropy of the system does not change for an adiabatic reversible process.