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Enter your answer in the provided box. Calculate the standard entropy change for the following reaction at 25°C. S(rhombic) +
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Answer #1


Given:
Sof(S(rhombic)) = 31.88 J/mol.K
Sof(O2(g)) = 205.0 J/mol.K
Sof(SO2(g)) = 248.5 J/mol.K

Balanced chemical equation is:
S(rhombic) + 5 O2(g) ---> SO2(g)

ΔSo rxn = 1*Sof(SO2(g)) - 1*Sof( S(rhombic)) - 5*Sof(O2(g))
ΔSo rxn = 1*(248.5) - 1*(31.88) - 5*(205.0)
ΔSo rxn = -808.38 J/K
Answer: -808.38 J/K

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