Exam 3 Question 11

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Exam 3 Question 11

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Exam 3

11.  A car has been fitted with an internal combustion engine that uses ethane as a fuel, which undergoes the following reaction when combusted: 2C2H6(g) + 7O2(g)  4CO2(g)  + 6H2O(g).  Ethane (C2H6) has a molecular weight of 30.1 g/mol and a heat of reaction of –2,855.4 kJ/mol at 25oC.  What is the ∆So for this reaction at 25oC? (13 pt) 

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This question is taken from Chem 102 – General Chemistry II » Summer 2021 » Exams