I think the answer is magnetic field?
This means a release of free energy from the system corresponds to a negative change in free energy, but to a positive change for the surroundings.
kdjsbjsof in bwjfiejwnjfifihdhwhbsd
1) 1.8 micrograms(least)
2) 1.8 grams
3) 1.8 kilograms(greatest)
