The Standard Entropy for the Formation of SF₆(g)from the Elements $\to$

question 70

Multiple Choice

The standard entropy for the formation of SF₆(g) from the elements,
S(s) + 3 F₂(g) $\to$ SF₆(g)
Is -348.7 J/K.mol-rxn at 298.15 K.Calculate the standard molar entropy of SF₆(g) given S ^$\circ$ [S(s) ] = 32.1 J/K.mol and S ^$\circ$ [F₂(g) ] = 202.8 J/K.mol.

• A) -988.6 J/K.mol
• B) +291.8 J/K.mol
• C) -291.8 J/K.mol
• D) -113.2 J/K.mol
• E) +113.8 J/K.mol

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