Elemental boron can be forrmed by reaction of boron trichloride with hydrogen.
BCl3(g) + 1.5H2(g) → B(s) + 3HCl(g)
Substance: BCl3(g) H2(g) B(s) HCl(g)
(J/K•mol): ? 130.6 5.87 186.8
If ΔS°rxn = 80.3 J/K, what is S° for BCl3(g)?
A) -18.2 J/K•mol
B) 18.2 J/K•mol
C) 290.1 J/K•mol
D) 355.4 J/K•mol
E) 450.6 J/K•mol
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