Find the enthalpy of combustion of C2H4(g), C2H4(g) + 302(g) → 2CO2(g) + 2H2O(1) given the...
From the following heats of combustion, CH3OH(l) + 3/2O2(g) → CO2(g) + 2H2O(l) ΔHorxn = –726.4 kJ/mol C(graphite) + O2(g) → CO2(g) ΔHorxn = –393.5 kJ/mol H2(g) + ½O2(g) → H2O(l) ΔHorxn = –285.8 kJ/mol Calculate the enthalpy of formation of methanol (CH3OH) from its elements. C(graphite) + 2H2(g) + ½O2(g) → CH3OH(l) Methanol (CH3OH) is an organic solvent and is also used as a fuel in some automobile engines. From...
For the following reaction: C2H4(9) +302(g) + 2C02(g) + 2H2O(1) What is the change in free energy in kJ ? The relevant standard free energies of formation are: kJ AG . C.H. = 68.4- mol mol AG, 0, = 0 AGC, CO, = -393.3 kJ AGF, 4,0 = -285.8 kJ mol mol • Your answer should include three significant figures.
7. The enthalpy of combustion of C to CO2 is –393.5 kJ/mol C, and the enthalpy of combustion of Co to CO2 is -283.0 kJ/mol CO: C(s) + O2(g) + CO2(g) AH = -393.5 kJ CO(g) + 102(9) CO2(g) AH = -283.0 kJ Using these data, calculate the enthalpy of combustion of C to CO: C(s) + O2(g) → CO(g) AH = ? Answer: -110.5 kJ
PLS HELP NOW Determine the change in enthalpy (kJ) for the combustion of ethylene C2H4 : C2H4 (9) + 3 O2 (g) 2 CO2(g) + 2 H20 (g) given : AHⓇCO2 (g))=-393.5 kJ/moL, AH(H20 (g) = -241.8 kJ/mol, AHⓇCO2 (g) = 0 and AH®(CH()-52.5 kJ/mol O A. +1323.1 B. +1514.7 OC. +635.3 D.-132.1 O E.-635.3 OF.-1514.7
Calculate the AH formation of octane, CBH1B (), given that the enthalpy of combustion of octane is -5471 kl/mol and the standard enthalpies of formation of H20 () and CO2 (g) are -393.5 kJ/mol and -285.8 kJ/mol respectively.
The combustion of lauric acid is given by the following thermochemcial equation: CH3(CH2)10COOH(s) + 18 O2(g) → 12 H2O(l) + 12 CO2(g) Hcomb is −7377 kJ mol−1 Using the heats of formation for CO2(g) and H2O(l) calculate the heat of formation (△fH) of lauric acid. △fH△ CO2(g) = −393.5 kJ mol−1 fH H2O(l)= −285.8 kJ mol−1 19. The combustion of lauric acid is given by the following thermochemcial equation: CH3(CH2)10COOH(s) + 18 O2(g) → 12 H2O(l) + 12 CO2(g) AH...
Consider a fuel cell that uses the reaction C2H4(g) + 302(g) + 2C02(g) + 2H2O(1) Using the standard free energies of formation, what is the value of Eº for the cell reaction? Substance and State AG (kJ/mol) C2H4 (8) 68.1 CO2(g) -394.4 H2O(1) -237.2 O2(g) 0 Express your answer with the appropriate units. C: HÅR O a ? Eº = 0.0138 Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining
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
1) Find the AH of the following reaction: C(s) + O2(g) à CO2(g) Given the following data: Sro(s) + CO2(g) à SrCO3(s) 2Sro(s) à 2Sr(s) +0,(8) AH = -234 kJ AH = +1184 kJ 2SCO,(s) à 25r(s) + 2C(s) + 302(g) AH = +2440 kJ 2) Find the AH of the following reaction: 3NO,(g) + H2O(l) à 2HNO,(aq) + NO(g) Given the following data: 2NO(g) + O2(g) à 2NO(g) AH=-116 kJ 2N2(g) + 502(g) + 2H2O(l) à 4HNO3(aq) AH =...
[32] The enthalpy of reaction for [6] enthalpy of reaction for the combustion of C to CO, is-393.5 kJ/mol C, and the enthalpy for the combustion of CO to CO, is-283.0 kJ/mol CO: (i) C(s) + O2(g) + CO2(e) AH -393.5 kJ CO(g) + O2(g) + CO2(g) AH -283.0 kJ Using these data, calculate the enthalpy for the combustion of C to CO. (iii) C(s) + O2(g) - CO(g) AH-?