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- What is ΔG0 (in units of J) for the following reaction at 298K? O2(g) + 4H+(aq) +4Fe2+(aq) → 4Fe3+(aq) + 2H2O(l) E0cell = 0.04 V ΔG0 = –nFE0cell = –RT ln(K) R = 8.314 J/mol K F = 96,485 C / mol e- Answer in the form 1.23E4 and with units of JIf a plot of ln(Ksp) vs. T gives a straight line with slope equal to 2.4 × 103 K and y-intercept equal to -7.4, what is ΔS° for the process? −290 J/mol −62 J/mol·K −20. kJ/mol −890 kJ/mol·KChemistry show all work Calculate the PV work associated with the combustion of ethane (C2H6) at 298 K.
- For boiling of propyl alcohol (CH3 CH2 CH2 OH), the reactionCH3 CH2 CH2 OH ---> CH3 CH2 CH2 OH(g)it is found that Hrxn = 47.5 kJ/mol and Srxn = 129.0 J/molK. a) Based on the above data, estimate the value for Tb, the normal boiling point for propyl alcohol. b) The experimental value for the normal boiling point for propyl alcohol is Tb = 97. C. Is this the same (to within +-1. C) as the value found in part a? If not, explain why the value in part a is different than the experimental value?AuBr(s) + 2 CN– (aq) ⇄ [Au(CN)2]– (aq) + Br– (aq) Given: Keq = 2.02 x 1033 Ksp for AuBr is 9.8 x 10–6, Solve for the Kf of [Au(CN)2]–can someone find the [OH-] at T hot, the Ksp at T hot, the delta G for T hot, the delta S and delta H and % error given the following values Temp Room: 20.1 deg Cel Temp Hot: 30.7 deg Cel pH Room: 12.78 pH Hot: 12.44 calculate the value given the following standard state entropies S f Ca(OH)2 (aq) = -74.6 J/mol K S f Ca(OH)2 (s)= 83.39 J /mol K
- Thermodynamics Quantities for Selected Substances at 298.15 K (25⁰C) Substance ∆H⁰f (kJ/mol) ∆G⁰f (kJ/mol) S (J/K-mol) Carbon C2H2(g) 226.7 209.2 200.8 C2H4(g) 52.30 68.11 219.4 Hydrogen H2(g) 0 0 130.58 Oxygen O2(g) 0 0 205.0 H2O(l) -285.83 -237.13 69.91 3. What is the value of ∆S⁰ for the catalytic hydrogenation of ethene to ethane: C2H4(g) + H2(g) → C2H6(g) + 2H2O(l) in J/K?A plot of ln Keq (y-axis) vs. 1/T (x-axis) for a dissolution reaction has an equation of y = 18742x + 24.298. Estimate the value of ΔG for this reaction at 25°C. Group of answer choices –216.0 kJ 105.6 kJ –236.0 kJ –226.0 kJ 115.6 kJ 95.6 kJThermodynamics Quantities for Selected Substances at 298.15 K (25⁰C) Substance ∆H⁰f (kJ/mol) ∆G⁰f (kJ/mol) S (J/K-mol) Carbon C(s, diamond) 1.88 2.84 2.43 CO(g) -110.5 -137.2 197.9 Hydrogen H2(g) 0 0 130.58 Oxygen O2(g) 0 0 205.0 H2O(l) -285.83 -237.13 69.91 What is the ∆S⁰ for the reaction: 2C(s, diamond) + O2(g) → 2CO(g) in J/K?
- The Ksp of PbCl2 is 1.7x10-5 at 25oC. What is DGo? Is it possible to prepare a solution that contains Pb2+(aq) and Cl2(aq), at their standard-state concentrations?Thermodynamics Quantities for Selected Substances at 298.15 K (25⁰C) Substance ∆H⁰f (kJ/mol) ∆G⁰f (kJ/mol) S (J/K-mol) Carbon C2H2(g) 226.7 209.2 200.8 CO2(g) -393.5 -394.4 213.6 Hydrogen H2(g) 0 0 130.58 Oxygen O2(g) 0 0 205.0 H2O(l) -285.83 -237.13 69.91 What is the ∆S⁰ in the combustion of ethane in the presence of excess oxygen yields carbon dioxide and water: 2C2H2(g) + 7O2(g) → 4CO2(g) + 6H2O(l) in J/K?The Kₛₚ of PbCl₂ is 1.7X10⁻⁵ at 25°C. What is ΔG°? Is it possible to prepare a solution that contains Pb²⁺(aq) andCl(aq), at their standard-state concentrations?