4) What is AH°rxn for the following reaction? 2C8H18(1) + 1702(g) → 16CO(g) + 18H20(1) Use...
Question 1 2C8H18 + 2502 - 16CO2 + 18H20 AH rxn--11020 kJ/mol rxn Look at above equation. How many kl of heat will be released when 7.00 grams of C8H18 is combusted? 23.1 k) 840 kJ 8.82 x 103 o 2190 kJ 6.07 x 103 9440 kj 138 kJ 338 k) A Moving to the next question prevents changes to this answer.
Calculate the standard enthalpy change for the reaction 2C8H18(l) + 17O2(g) →16CO(g) + 18H2O(l). Given 2C8H18(I) + 25O2(g) →16CO2(g) + 18H2O(I) ΔH°=-11,020 kJ/mol 2CO(g) + O2(g) → 2CO2(g) ΔH° = -566.0 kJ/mol 0 -6,492 kJ/mol 15,550 kJ/mol 10,450 kJ/mol -10.450 kJ/mol 6,492 kJ/mol
Calculate the standard enthalpy change for the reaction 2C8H18(I) + 17O2(g) → 16CO(g)+ 18H2O(1) Given: 2C8H18(I) + 25O2(g) → 16CO2(g)+18H2O(I) ΔH° = -11,020 kJ/mol2CO(g) + O 2(g) → 2CO2(g) ΔH° = -566.0 kJ/mol -10.450 kJ/mol -6,492 kJ/mol 6,492 kJ/mol 10,450 kJ/mol 15,550 kJ/mol
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)
CO(g) + O2(g) -> CO2(g) (unbalanced) Using the equation and thermodynamic data: AH(rxn) --566.0 kJ (for the balanced equation) Substance sºu/mol*K) O2(g) 205.0 CO(g) 197.7 CO2(g) 213.8 NOTE: Write all answers to four significant figures. a. What is the Assys(J/mol*K) - b. What is the Assurr(J/mol*K) = c. What is the Asuniv(J/mol*K) - d. At what temperature(°C) will the reaction go from spontaneous to non-spontaneous?
Using the equation and thermodynamic data: CO(g) + O2(g) --> CO2(g) (unbalanced) AH(rxn) = -566.0 kJ ( for the balanced equation) Substance sºu/mol*K) O2(g) 205.0 CO(g) 197.7 CO2(g) 213.8 NOTE: Write all answers to four significant figures. a. What is the Assys(J/mol*K) = b. What is the Assurr(J/mol*K) = c. What is the Asuniv( J/mol*K) = d. At what temperature(°C) will the reaction go from spontaneous to non-spontaneous?
4) What is AH°rxn for the following reaction? H3AsO4(aq) + 4H2(g) → AsH3(g) + 4H20(1) Substance AsH3(g) H3AsO4(aq) H2011) H2(g) AH°f(kJ/mol) 171.5 -904.6 -285.8 0 A) -1018.9 kJ/mol B) -67.1 kJ/mol C) -1876.3 kJ/mol - D) -410.1 kJ/mol E) -790.3 kJ/mol
For the following reaction: 2C3H18(1) + 2502(g) → 16C02(g) + 18H20(1) Compound AH°F (kJ moll) Sº (3 mol-1 K-1) C8H18 ( 259.30 328.00 O2 (g) 0.00 205.70 CO2 (9) -393.51 213.74 H20 (1) -285.83 69.91 Determine the temperature (to two decimal places in K) such that the reaction is in equilibrium in its standard states.
Question 6 1.5 pts Predict under what temperatures (all temperatures, low temperatures, or high temperatures), if any, the following reactions will be spontaneous. A. 2CO(g) + O2(g) = 2002(g), AH rxn=-566.0 kJ [ Select] B. 2NO2(g)2NO(g)+O2(g), AH rxn= +113.1 kJ [ Select ] C. 2H2(g)+O2(g)—2H2O(g), AH rxn=-483.6 kJ [ Select] D. 2H2O2(1)→2H2O(1)+O2(g), AH rxn= -196.0 kJ [Select ]
Which one of the following is NOT true? If Ано, =-115 kJ and as rxn -- +263 J/K, then ASuniv> 0 at all temperatures rxn The following reaction 2 NO2(g) → 2 NO(g) + O2(g), Ahº, is not spontaneous at any temperature rxn = +113.5 kJ, The following reaction • 2 H2S(g) → S2(g) + 2 H2(g) Ahº, rxn = +169.8 kJ has a AS surrof - 570 J/K at 298 K For the following reaction 2CO(g) + O2(e) →...