AP Physics 2 Question of the Day

The entropy of a non-isolated system can decrease only if the entropy of its surroundings increases by a greater amount.

The entropy of a system, whether it is isolated or non-isolated, can only increase.

The entropy of a system can decrease, but only if the system is isolated and the process is irreversible.

The entropy of a system can decrease only in the case of a reversible adiabatic process.

None of these.