The Dehydrogenation of Butane to Trans-But-2-Ene Has ∆H° = +116

question 34

Essay

The dehydrogenation of butane to trans-but-2-ene has ∆H° = +116 kJ/mol (+27.6 kcal/mol) and ∆S° = +117 J-kelvin/mol (+28.0 cal-kelvin/mol). Compute the value of ∆G° for dehydrogenation at room temperature (25°C or 298°K). Is dehydrogenation favored or disfavored?

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