The true statements regarding free energy and work are:
1. In any real cyclic process in the system, work is changed to heat in the surroundings, and the entropy of the universe increases.
2. When energy is used to do work, it becomes less organized and less concentrated and thus less useful.
3. The maximum possible useful work obtainable from a process at constant temperature and pressure is equal to the change in free energy.
So, the correct statements are 1, 2, and 3.