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![H 285.8 SHE = (satu)p- (ESHR • 47855 TEKSH; C(0) Chy] - [ 5* vs Hj (CuCwt, ) + frsuju] - (-393.5 – 30-37-[-319.2 . 02855] =](http://img.homeworklib.com/questions/c1f39be0-668e-11ea-8f43-3d2578c46dc4.png?x-oss-process=image/resize,w_560)
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4. (10 pts) With time, urine starts to...
1. Find the heat of combustion of liquid toluene (C6H5-CH3) Table of Heats of Formation Substance...
1. Find the heat of combustion of liquid toluene (C6H5-CH3) Table of Heats of Formation Substance AHP (kJ/mole) 716.7 CIB) C graphite) C(diamond) CH4(8) C2H2(g) C2H4(8) C2H618) C6H6(e) CHg(e) OIB) 0318) CO2(aq) CO2(g) CO(R) HB) 1.895 -74.81 226.73 52.26 -84.68 49.04 50.0 249.2 143.0 -412.9 -393.5 -110.5 217.9 -241.8 -285.8 -272.0 -825.5 -1121.0 H2O(g) H20le) Fe(s) Fe2O3(s) Fe30413)
At 298 K, evaluate deltaG(kJ) and deltaE (V) for 2CH3OH(l) + 3O2(g) -> 4H2O(g) + 2CO2(g)...
At 298 K, evaluate deltaG(kJ) and deltaE (V) for
2CH3OH(l) + 3O2(g) -> 4H2O(g) + 2CO2(g)
S (J/mol-K) AH°y (kJ/mol) So (J/mol-K) AH(kJ/mol) Substance Substance N2(g) CH-ОН() 126.8 0 191.5 -238.6 CO(g) NH3(g) 197.9 192.5 -110.5 -46.2 CO2(g) NO(g) 213.6 +90.4 210.6 -393.5 NO2(g) +33.8 240.5 H2(g) HNO3(aq) 130.6 146.0 -206.6 H2O( 69.9 -285.8 O2(g) 188.8 H2O(g) 0 205.0 -241.8
4. The standard heat of forrmation of isobutane cannot be measured directly but can be determined...
4. The standard heat of forrmation of isobutane cannot be measured directly but can be determined indirectly from other heats of reaction by applying Hess's Law. Given the following data for the combustion of carbon, hydrogen, and isobutane, C-H10, in oxygen: C(s) + O2 (g) → CO2 (g) AH=-393.5 kJ H2 (g) + 1/2O2 (g) → H2O (1) AH = -285.8 kJ C4H10 +61/2O2 (g) → 4 CO2 (g) + 5 H2O (1) AH=-2.857 x 103 kJ Calculate the standard...
3 attempts left Check my work Enter your answer in the provided box. Calculate AG for...
3 attempts left Check my work Enter your answer in the provided box. Calculate AG for the reaction at 25°C. 2C6H61) + 1502(8) 12C028) + 6H20(1) agº = kJ AH° (kJ/mol Agº (kJ/mol) sº (J/K mol) 5.69 2.4 Substance C(graphite) C(diamond) CO(g) CO2(g) CO2(aq) C0,- (aq) O(g) O2(8) O3(aq) O3(8) H20(1) CH 1.90 -110.5 -393.5 -412.9 -676.3 249.4 2.87 --137.3 -394.4 -386.2 --528.1 230.1 0 16.3 163.4 -237.2 124.5 197.9 213.6 121.3 -53.1 160.95 205.0 110.88 237.6 -12.09 142.2 -285.8...
In Class Exercise - The Gibbs Free Energy Change, AG 1) Determining the Standard Gibbs Free...
In Class Exercise - The Gibbs Free Energy Change, AG 1) Determining the Standard Gibbs Free Energy Change (AGⓇ) for a Chemical Reaction 2) Using AGº to Determine Spontaneity Name: Date: Lab section: Show your work when there are calculations, write units, and use correct significant figures. Consider the following reaction (balanced as written) and thermodynamic data from tables in your book: CO(NH2)2(aq) + H2O(l) → CO2(g) + 2NH3(g) Substance CO(NH2)2(aq) H2O(1) CO2(g) NH AH° (kJ/mol) -391.2 -285.9 -393.5 -46.19...
(2) (24 pts) A fuel cell produces electricity via a combustion reaction. A DMFC is a...
(2) (24 pts) A fuel cell produces electricity via a combustion reaction. A DMFC is a proton-exchange fuel cell that uses methanol CH3OH) as the fuel, which reacts with molecular oxygen to produce carbon dioxide and water. (a) (4 pts) Write the balanced combustion reaction for this methanol fuel cell. (b) (4 pts) Write the balanced half-reactions occurring at the cathode and anode of this fuel cell (assume standard acidic conditions) (e) (4 pts) Evaluate AGº (kJ) and AE° (V)...
avuuuw ac mallianned at 25 L and I bar. 86. Use data from Table 7.2, together...
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)...
please help I need help understanding, explain steps too, thank you 4. Given the following two...
please help I need help understanding, explain steps too, thank
you
4. Given the following two thermochemical equations, determine the AHx,unknown. Fe2O3(s) + 3 CO(g) → 2 Fe(s) + 3 CO2(g) AHørxn=-26.7 kJ CO(g) + 42 02(g) - CO2(g) AHºrx= -283.0 kJ 2 Fe(s) + 3/2 02(9) Fe2O3(s) AHºrxn unknown= ? 5. Calculate AHº for the reaction 2 C(s) + H2(g) – C2H2(g) Given the following data C2H2(g) + 5/202(g) → 2C02(g) + H20(C) C(s) + O2(g) → CO2(g) Hz(9)...
In Class Exercise - The Gibbs Free Energy Change, AG 1) Determining the Standard Gibbs Free...
In Class Exercise - The Gibbs Free Energy Change, AG 1) Determining the Standard Gibbs Free Energy Change (AGⓇ) for a Chemical Reaction 2) Using AGº to Determine Spontaneity Name: Date: Lab section: Show your work when there are calculations, write units, and use correct significant figures. Consider the following reaction (balanced as written) and thermodynamic data from tables in your book: CO(NH2)2(aq) + H2O(1) ► CO2(g) + 2NH3(g) Substance CO(NH3)2(aq) H00 AH(kJ/mol) 1-391.2 -285.9 -3935 -46.19 S'J/mol K) 173.8...
0 AH; (kl mol-1) 90.37 33.8 81.57 9.67 Ca(s) 0 11 Review Intelligent Tutoring Problem...
0 AH; (kl mol-1) 90.37 33.8 81.57 9.67 Ca(s) 0 11 Review Intelligent Tutoring Problem 6.93 Using the data in the table below, calculate AH° in kilojoules for the following reactions. Standard Enthalpies of Formation of Typical Substances Substance AH() mol-1) Substance AH (K) mol-1) Substance Ag(s) H2O2(0) -187.6 CH (8) AgBr() -100.4 HBrg) -36 CH,OH(I) AgCl(s) - 127.0 HCl(g) -92.30 AO) HI(g) 26.6 CaBr20) Al2O3() -- 1669.8 HNO3(1) -173.2 CaCO3(9 CG) (graphite) H2SO4) -811.32 CaCl (5) CO(g) -110.5...
1. Find the heat of combustion of liquid toluene (C6H5-CH3) Table of Heats of Formation Substance AHP (kJ/mole) 716.7 CIB) C graphite) C(diamond) CH4(8) C2H2(g) C2H4(8) C2H618) C6H6(e) CHg(e) OIB) 0318) CO2(aq) CO2(g) CO(R) HB) 1.895 -74.81 226.73 52.26 -84.68 49.04 50.0 249.2 143.0 -412.9 -393.5 -110.5 217.9 -241.8 -285.8 -272.0 -825.5 -1121.0 H2O(g) H20le) Fe(s) Fe2O3(s) Fe30413)
At 298 K, evaluate deltaG(kJ) and deltaE (V) for
2CH3OH(l) + 3O2(g) -> 4H2O(g) + 2CO2(g)
S (J/mol-K) AH°y (kJ/mol) So (J/mol-K) AH(kJ/mol) Substance Substance N2(g) CH-ОН() 126.8 0 191.5 -238.6 CO(g) NH3(g) 197.9 192.5 -110.5 -46.2 CO2(g) NO(g) 213.6 +90.4 210.6 -393.5 NO2(g) +33.8 240.5 H2(g) HNO3(aq) 130.6 146.0 -206.6 H2O( 69.9 -285.8 O2(g) 188.8 H2O(g) 0 205.0 -241.8
4. The standard heat of forrmation of isobutane cannot be measured directly but can be determined indirectly from other heats of reaction by applying Hess's Law. Given the following data for the combustion of carbon, hydrogen, and isobutane, C-H10, in oxygen: C(s) + O2 (g) → CO2 (g) AH=-393.5 kJ H2 (g) + 1/2O2 (g) → H2O (1) AH = -285.8 kJ C4H10 +61/2O2 (g) → 4 CO2 (g) + 5 H2O (1) AH=-2.857 x 103 kJ Calculate the standard...
3 attempts left Check my work Enter your answer in the provided box. Calculate AG for the reaction at 25°C. 2C6H61) + 1502(8) 12C028) + 6H20(1) agº = kJ AH° (kJ/mol Agº (kJ/mol) sº (J/K mol) 5.69 2.4 Substance C(graphite) C(diamond) CO(g) CO2(g) CO2(aq) C0,- (aq) O(g) O2(8) O3(aq) O3(8) H20(1) CH 1.90 -110.5 -393.5 -412.9 -676.3 249.4 2.87 --137.3 -394.4 -386.2 --528.1 230.1 0 16.3 163.4 -237.2 124.5 197.9 213.6 121.3 -53.1 160.95 205.0 110.88 237.6 -12.09 142.2 -285.8...
In Class Exercise - The Gibbs Free Energy Change, AG 1) Determining the Standard Gibbs Free Energy Change (AGⓇ) for a Chemical Reaction 2) Using AGº to Determine Spontaneity Name: Date: Lab section: Show your work when there are calculations, write units, and use correct significant figures. Consider the following reaction (balanced as written) and thermodynamic data from tables in your book: CO(NH2)2(aq) + H2O(l) → CO2(g) + 2NH3(g) Substance CO(NH2)2(aq) H2O(1) CO2(g) NH AH° (kJ/mol) -391.2 -285.9 -393.5 -46.19...
(2) (24 pts) A fuel cell produces electricity via a combustion reaction. A DMFC is a proton-exchange fuel cell that uses methanol CH3OH) as the fuel, which reacts with molecular oxygen to produce carbon dioxide and water. (a) (4 pts) Write the balanced combustion reaction for this methanol fuel cell. (b) (4 pts) Write the balanced half-reactions occurring at the cathode and anode of this fuel cell (assume standard acidic conditions) (e) (4 pts) Evaluate AGº (kJ) and AE° (V)...
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)...
please help I need help understanding, explain steps too, thank
you
4. Given the following two thermochemical equations, determine the AHx,unknown. Fe2O3(s) + 3 CO(g) → 2 Fe(s) + 3 CO2(g) AHørxn=-26.7 kJ CO(g) + 42 02(g) - CO2(g) AHºrx= -283.0 kJ 2 Fe(s) + 3/2 02(9) Fe2O3(s) AHºrxn unknown= ? 5. Calculate AHº for the reaction 2 C(s) + H2(g) – C2H2(g) Given the following data C2H2(g) + 5/202(g) → 2C02(g) + H20(C) C(s) + O2(g) → CO2(g) Hz(9)...
In Class Exercise - The Gibbs Free Energy Change, AG 1) Determining the Standard Gibbs Free Energy Change (AGⓇ) for a Chemical Reaction 2) Using AGº to Determine Spontaneity Name: Date: Lab section: Show your work when there are calculations, write units, and use correct significant figures. Consider the following reaction (balanced as written) and thermodynamic data from tables in your book: CO(NH2)2(aq) + H2O(1) ► CO2(g) + 2NH3(g) Substance CO(NH3)2(aq) H00 AH(kJ/mol) 1-391.2 -285.9 -3935 -46.19 S'J/mol K) 173.8...
0 AH; (kl mol-1) 90.37 33.8 81.57 9.67 Ca(s) 0 11 Review Intelligent Tutoring Problem 6.93 Using the data in the table below, calculate AH° in kilojoules for the following reactions. Standard Enthalpies of Formation of Typical Substances Substance AH() mol-1) Substance AH (K) mol-1) Substance Ag(s) H2O2(0) -187.6 CH (8) AgBr() -100.4 HBrg) -36 CH,OH(I) AgCl(s) - 127.0 HCl(g) -92.30 AO) HI(g) 26.6 CaBr20) Al2O3() -- 1669.8 HNO3(1) -173.2 CaCO3(9 CG) (graphite) H2SO4) -811.32 CaCl (5) CO(g) -110.5...
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