At the room temperature (25 C), ethene can be hydrogenated (add one mole of H to...
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At the room temperature (25 °C), ethene can be hydrogenated (add one mole of H₂ to the double bond) to give ethane in the presence of a catalyst, as shown below: H H C=C H ethene + H₂ catalyst 25 °C HH LL H-C-C-H H H ethane It is known from the experiment that AG°= -30kcal/mol. Answer the following questions: (A) Calculate the equilibrium constant for this reaction if there is sufficient data. If there is not enough data to allow for such calculation, simply state so. (B) Predict the sign of this AS° for this reaction. Briefly explain your reasoning. (C) Predict the sign of AH° for this reaction. Explain briefly how you arrive at this conclusion. At the room temperature (25 °C), ethene can be hydrogenated (add one mole of H₂ to the double bond) to give ethane in the presence of a catalyst, as shown below: H H C=C H ethene + H₂ catalyst 25 °C HH LL H-C-C-H H H ethane It is known from the experiment that AG°= -30kcal/mol. Answer the following questions: (A) Calculate the equilibrium constant for this reaction if there is sufficient data. If there is not enough data to allow for such calculation, simply state so. (B) Predict the sign of this AS° for this reaction. Briefly explain your reasoning. (C) Predict the sign of AH° for this reaction. Explain briefly how you arrive at this conclusion.
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