## Answers

**entropy change of reaction = 16 S ( CO2) + 18 S ( H2O) - 2 S ( C8H18) - 25 S ( O2)**

**= 16 x ( 214 J/molK) + 18 ( 189 J/molK) - 2 ( 361 J/molK) - 15 ( 205 J/molK)**

**= 3029 J/molK**

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