Use data from Table 7.2 and A.Hº for the following reaction to determine the standard enthalpy...
TABLE 7.2 Some Standard Molar Enthalpies of Fa AcHº at 298.15 K Substance kJ/mola Substance CO(g) CO2(g) CH4(g) C2H2(g) C2H4(g) C2H6(g) C3H8(g) C4H10(g) CH3OH(1) C2H5OH(1) HF(g) HCl(g) -110.5 -393.5 - 74.81 226.7 52.26 -84.68 - 103.8 – 125.6 –238.7 –277.7 -271.1 -92.31 HBr(g) HI(g) H2O(g) H2O(1) H2S(g) NH3(g) NO(g) N2O(g) NO2(g) N204(8) SO2(g) SO3(g) aValues are for reactions in which one mole of substance is formed. M been rounded off to four significant figures. (Reference to Equation 7.22): A Hº...
avuuuw ac mallianned at 25 L and I bar. 86. Use data from Table 7.2, together with the fact that AHº = -3509 kJ mol-1 for the complete combustion of pentane, C5H12(1), to calculate A Hº for the reac- tion below. 5 CO(g) + 11 H2(g) → C5H12(1) + 5 H2O(1) ApHº = ? TABLE 7.2 Some Standard Molar Enthalpies of Formation, AHº at 298.15 K du Substance kJ/mola Substance kJ/mola CO(g) -110.5 HBr(g) -36.40 CO2(g) -393.5 HI(g) 26.48 CH_(8)...
A scientist measures the standard enthalpy change for the following reaction to be - 87.7 kJ : 2HBr(g) + Cl2(g)— 2HCl(g) + Bra(s) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of HCl(g) is kJ/mol CH4() + H2O(g)_3H2(g) + CO(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of H2O() is kJ/mol Given the standard enthalpy changes for...
help asap 3. Calculate the standard enthalpy change, Hº, for the following reaction using standard enthalpies of formation. (1 point) 2C2H2(g) + 502(g) → 4CO2(g) + 2H20(1) Standard Enthalpies of Formation AH for C2H2(g) = +226.7 kJ/mol AHfor CO2(g) = -393.5 kJ/mol AH for H2O(l) = -285.8 kJ/mol
A scientist measures the standard enthalpy change for the following reaction to be -2847.0 kJ: 2C2H6(g) + 7 02(g) —4CO2(g) + 6H2O(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of CzH6(g) is kJ/mol. A scientist measures the standard enthalpy change for the following reaction to be -15.0 kJ : Ca(OH)2(aq) + 2 HCl(aq) +CaCl(s) + 2 H20(1) Based on this value and the standard enthalpies of formation for...
1. A scientist measures the standard enthalpy change for the following reaction to be -2913.0 kJ: 2C2H6(g) + 7 O2(g)->4CO2(g) + 6 H2O(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of H2O(g) is kJ/mol. 2. A scientist measures the standard enthalpy change for the following reaction to be -138.6 kJ : H2(g) + C2H4(g)->C2H6(g) Based on this value and the standard enthalpies of formation for the other substances, the...
A scientist measures the standard enthalpy change for the following reaction to be -209.3 kJ: CO (g) + 3 H2 (g) --> CH4 (g) + H2O (g) based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of CH4 (g) is what? (kJ/mol)
4. Use a standard enthalpies of formation values below to determine the change in enthalpy for each of these reactions. Reaction: NaOH(s) + HCl(g) → NaCl(s) + H2O(g) Compound NaOH(s) HCl(g) NaCl(s) H2O(g) AHF (kJ/mol) -426.7 -92.3 -411.0 -241.8
Use the information given here, data from Appendix D, and equation (7.22) to calculate the standard enthalpy of formation per mole of ZnS(s). 2 ZnS(s) + 302(g) —2 ZnO(s) + 2 SO2(g) A Hº = -878.2 kJ mol-1 (Reference to Equation 7.22):
Heat of Formation Calculations: 32) Use a standard enthalpies of formation (Ho) table to determine the change in enthalpy for each of these reactions Hrxn [n. Ho(products) - n. Ho(products)] CO (g): -110.5 kJ/mol; CO2 (g): -393.5 kJ/mol CH4 (g): -890.4 kJ/mol H2O (l): -285.8 kJ/mol; H2O (g): -241.8 kJ/mol H2S (g): -20.6 kJ/mol; NO: -90.2 kJ/mol NO2: +33.9 kJ/mol; HCl (g): -92.3 kJ/mol NaOH (s): -426.7 kJ/mol; SO2 (g): -296.8 kJ/mol a) CH4(g) + 2 O2(g) ---> CO2(g) +...