Problem: Calculate the standard entropy change for the following reaction, 2SO2 (g) + O2 (g) → 2SO3 (g) given S° [SO2 (g)] = 248.2 J/K • mol. S° [O2 (g)] = 205. 1 J/K • mol, and S° [SO3 (g)] = 256.8 J/K • mol. (a) -196.5 J/K • mol-rxn (b) -94.0 J/K • mol-rxn (c) -187.9 J/K • mol-rxn (d) +187.9 J/K • mol-rxn (e) +196.5 J/K • mol-rxn

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Problem Details

Calculate the standard entropy change for the following reaction, 

2SO2 (g) + O2 (g) → 2SO3 (g) 

given S° [SO2 (g)] = 248.2 J/K • mol. S° [O2 (g)] = 205. 1 J/K • mol, and S° [SO3 (g)] = 256.8 J/K • mol. 

(a) -196.5 J/K • mol-rxn 

(b) -94.0 J/K • mol-rxn 

(c) -187.9 J/K • mol-rxn 

(d) +187.9 J/K • mol-rxn 

(e) +196.5 J/K • mol-rxn


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