Determine whether the chemical potentials of the two substances listed are the same or different. If they are different, state which one is lower than the other.
a. Liquid mercury, Hg (l), or solid mercury, Hg (s), at its normal melting point of 238.9°C
b. H2O (l) or H2O (g) at 99°C and 1 atm
c. H2O (l) or H2O (g) at 100°C and 1 atm
d. H2O (l) or H2O (g) at 101°C and 1 atm
e. Solid lithium chloride, LiCl, or gaseous LiCl at 2000°C and normal pressure (The boiling point of LiCl is about 1350°C.)
f. Oxygen, O2, or ozone, O3, at STP
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