For the reaction, X₂O₄(l)→2XO₂(g), ΔU=2.1 Kcal, ΔS=20 cal K−1 at 300 K.
Hence, ΔG is:
a. 2.7 k cal
b. -2.7 k cal
c. 9.3 k cal
d. -9.3 kcal