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Predict the sign of the entropy change for the following reactionsand tell whether the reactions are spontaneous ornonspontaneous.

a. C8H16 (g) + H2(g) ? C8H18 (g)


b. C2H5OH (l) + 3O2(g)? 2CO2 (g) + 3H2O (g)


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Nelly Stracke
Nelly StrackeLv2
29 Sep 2019
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Related questions

For each of the following reactions, calculate the grams of indicated product produced when 20.0 g of each reactant is used: a) 4Al(s)+3O2(g)-->2Al2O3(s) (Al2O3). b) 3NO2(g)+H2O(l)-->2HNO3(aq)+NO(g) (HNO3). c)C2H5OH(l)+3O2(g)-->2CO2(g)+3H2O(g) (H2O).

Brazilains are quite familiar with fueling their automobileswith ethanol, a fermentation product from sugarcane. Calculate thestandard molar enthalpy for the complete combustion of liquidethanol (C2H5OH) using the standardenthalpies of formation of the reactants and the products.

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