a) Complete the table below using data given in the Appendix of your textbook. 2 CH18...
UAB 8. combustion Calculate AG at 25°C of octane, C,H,O), 2C8H18(6+ 2502(8) → 16CO2(g) + 18H20(0) using the following thermodynamic data and that given in Appendix 2 of your textbook. For C,H,8(6), AH®, --208.4 kJ mol' and sº = 463.7 JK-moll. Give your answer in kJ mol of CH,80). (10 marks)
2. Calculate the enthalpy for the reaction below at standard conditions using Appendix G in your textbook. [Report the answer to three sig fig, without unit labels, and using +/- signs to indicate if the reaction is endo- or exothermic.] 2 Al(s) + Fe2O3(s) --> Al2O3(s) + 2 Fe(s) Substance AH (kJ mol-) AG; (kJ mol-1) Sº (JK-1 mol-2) aluminum 0 0 28.3 324.4 285.7 164.54 -531 -485 -321.7 Al(s) Al(g) Al3+ (aq) Al2O3(s) AlF3(s) AICI3(s) AlCl3.6H2O(s) -1676 -1582 50.92...
Answer both question below. Show all work and chemical equations. 1. Using the information below answer questions a to c. Ca sº = 41.6 J/mol K CaCO3 (s) sº = 91.7 J/mol K AH° = -1207.6 kJ/mol O2 Sº = 205.2 J/mol K Cao (s) S0 = 38.1 J/mol K AH = -634.9 kJ/mol CO2 (g) sº = 213.8 J/mol K AH° = -393.5 kJ/mol AH° O2 = 0 kJ/mol AH° Ca= 0 kJ/mol a) Calculate AS9rxn and AH°rxn for...
Thermodynamics Practice Problems 1. Predict the sign of AS.(positive or negative) for the following reactions a 2 Mg(s) +,(@) 2 Mgo (s) AS b. CH206(s) → 2C,H,OH(I) + 2003(g) AS c. 2 NH3(g) + CO2(g) → H2O(l) + NH CONH3(aq) AS d. Cu(s) (at 100°C) → Cu(s) (at 25°C) AS 2. Which two variables can indicate if a reaction is spontaneous or not? 3. The second law of thermodynamics tells us that: a Energy is conserved. b. The entropy of...
Question 10 5 pts Isooctane CH18 is a major component of gasoline. Determine the change in enthalpy for the combustion of 228.0 g of isooctane from the following data: Hz (s) + 1/2O2(g) +H20 (3) AH° --241.8 kJ C(s) + O2(g) C02 (8) AH° = -393.5 kJ 8C (s) + 9H2(g) —C8H18 (1) AH° = -224.13 kJ O-10200 kJ C -89.43) 411.23 0 -2550 kJ C-5548 kJ
12. Using the data: CH«(9), AH; = +51.9 kJ mor', sº = 219.8 J mor' k' CO2(g), AH = -394.0 kJ mor', sº = 213.6 J mor' k' H2O(), AH = -286.0 kJ mor', sº = 69.96 J mor'' O2(g), AH = 0.00 kJ mor', sº = 205 J mor'' calculate the maximum amount of useful work that can be obtained, at 25.0 °C, from the process: C2H4(9) + 3 O2(g) → 2 CO2(g) + 2 H2O(1) a. 1332 kJ...
The reduction of iron(III) oxide (Fe203) to pure iron during the first step of steelmaking 2 Fe2O3(s) 4 Fe(s) + 3 O2(g) is driven by the high-temperature combustion of coke, a purified form of coal: Cs)+O2(8) CO2(g) alo AG of CO2 and Fe,03 are Suppose at the temperature of a blast furnace the Gibbs free energies of formation Ar 447. kJ/mol and 801. kJ/mol, respectively. Calculate the minimum mass of coke needed to produce 3000. kg of pure iron. Round...
UJUH POHL Given the following information: Using the data given below at 25°C, calculate the change in enthalpy (DH) for the following reaction: 2PC13(g) + O2(g) ® 2POC13(g) Calculate the AH°rxn for the combustion of ethanol using the given AH°F. AHºf, ethanol (1) = -277.6 kJ/mol AHºf, water (1) = -285.8 kJ/mol AHºf, carbon dioxide (g) = -393.5 kJ/mol
5. Using standard heats of formation, calculate AH for 4 FeO (s) + O2(g) → 2 Fe2O3 (s) AH1 of FeO (s) = -272.0 kJ/mol AHºf of Fe2O3 (s) = -825.5 kJ/mol 3. Given 3 C (s) + 4 H2(g) → C3H8 (9) AH = -103.85 kJ/mol C(s) + O2(g) + CO2(g) AH = -393.5 kJ/mol H2 (g) + 12 O2(g) → H2O (1) AH = -285.8 kJ/mol find AH for C3H8 (g) + 5 O2(g) → 3 CO2 (g)...
1.(3pts) Use the following data to determine the AH... of 2 CHO(1) + 21 Og) --> 14 COMg) + 16 HẠO(g) Substance AH(kJ/mol) Substance AH?(kJ/mol Data: C Hag) CH,OH(L) C.H.O(1) CH, O) H.O(g) CO(g) O.(g) 20.9 -239.0 -277.0 -316 0 -241.82 -110.53 C.H.(5) CH,OH(g) C3H20 (1) C-HBO(l) H.O(1) CO; N (8) -104,0 -201.0 -298.6 -340.0 -285.83 -393.51 2.(2pts) If you are given 338,0 g 0 () and a sufficient amount of the other reactant, calculate the heat associated with reaction...