Homework Answers
6. Calculate the standard enthal py change for the reaction: CO (g) + H20(g) CO2 (g)...
6. Calculate the standard enthal py change for the reaction: CO (g) + H20(g) CO2 (g) + H2 (g) CO (g) H20 (g) CO2 (g) H2 (g) = -110.5 kJ/mol -241.8 kJ/mol -393.5 kJ/mol O kJ/mol 11 a. +41.2 kJ b.-41.2 kJ c. +82.4 kJ d. -82.4 kJ
2. Given the following heats of formation, calculate AH for the reaction 2 CO(g) + 5...
2. Given the following heats of formation, calculate AH for the reaction 2 CO(g) + 5 H2(g) → C2H6 (g) + 2 H2O(g) Compound AH°F (kJ/mol) Compound AH°F (kJ/mol) 52.28 C₂H6 (8) -84.68 C2H4 (8) -393.5 CO2(g) -241.8 H2O(g) -285.9 CO(g) -110.5 H2O(1)
7) Find AH° for the reaction C3Hg(8) + 5 O2(8) - 3 CO2(8) + 4 H2O(l)....
7) Find AH° for the reaction C3Hg(8) + 5 O2(8) - 3 CO2(8) + 4 H2O(l). AH° = -2046 kJ for the reaction: C3H8(8) + 5 O2(8) - 3 CO2(g) + 4H2O(8) The heat of vaporization of water is 44.0 kJ/mol. The standard enthalpy of formation of water and water vapor are -285.9kj/mol and -241.8 kj/mol, respectively. Note that H20 is a liquid in the first reaction and a gas in the second. 0-1870 kJ 0-2222 kJ O-2002 kJ 0-2090...
Question 3 Propane (C3H8) undergoes combustion according to the following thermochemical equation: C3H8(g) + 5 O2(g)...
Question 3 Propane (C3H8) undergoes combustion according to the following thermochemical equation: C3H8(g) + 5 O2(g) -- 3 CO2(g) + 4H2O(g) Arxn = -2043.0 kJ Substance Heat of Formation (kJ/mol) CO2(g) -393.5 H2O(g) -241.8 O2(g) 0 C3H8(g) ? Calculate the standard enthalpy of formation of propane C3H8 a. -104.7 kJ/mol ob. +1407.7 kJ/mol C. -1407.7 kJ/mol O d. +104.7 kJ/mol o e. -4190.7 kJ/mol
Question 3 Propane (C3Hg) undergoes combustion according to the following thermochemical equation: C3H8(g) + 5 O2(g)...
Question 3 Propane (C3Hg) undergoes combustion according to the following thermochemical equation: C3H8(g) + 5 O2(g) - 3 CO2(g) + 4H2O(g) AHrxn=-2043.0 kJ Substance Heat of Formation (kJ/mol) CO2(g) -393.5 H2O(g) -241.8 O2(g) 0 C3H8(g) ? Calculate the standard enthalpy of formation of propane C3Hg a. -104.7 kJ/mol O b. +1407.7 kJ/mol O C. -1407.7 kJ/mol O d. +104.7 kJ/mol o e. -4190.7 kJ/mol uestion 4 Consider the evaporation of liquid water to water vapor at 125°C. What is true...
Question 3 (6 points) What do you need to calculate to determine if this reaction is...
Question 3 (6 points) What do you need to calculate to determine if this reaction is favorable at room temperature (25 °C)? Is the reaction product favorable? Substance CH() O2(g) CO2(e) H2O(g) H20(1) 2C2H6 (g) + 702 (g) à 4002 (+ 6H2O(1) Hºp (kJ/mol) Gºt (kJ/mol) S (J/K mol) -84.68 -32.89 229.5 205.0 -393.5 -394.4 213.7 -241.8 -228.6 188.8 -285 84 -237.19 69 94 OAH, no AG", no O o o o o o o AS®, yes Asº.no AG", yes...
14- Calculate AH-m for the following reaction: 4 NHs (g) 솨,e,s ? + 5 (g) → 4 NO (g) + 6 H2O (g) Given the following ΔΗ7 values: NHs (g)-45.9 kJ/mol NO (g) +91.3 kJ/mol H20 (g)-241.8 kJ/mol A) 16...
14- Calculate AH-m for the following reaction: 4 NHs (g) 솨,e,s ? + 5 (g) → 4 NO (g) + 6 H2O (g) Given the following ΔΗ7 values: NHs (g)-45.9 kJ/mol NO (g) +91.3 kJ/mol H20 (g)-241.8 kJ/mol A) 1632 kJ B) 1632 kJ C) 1269 kJ D) 902 kJ E) Δ1p value for O2 is needed 15- Which electron configuration does not represent the Pauli exclusion A) B) s 2 C) 1s 2 2 D) 1s 2s E) 1s...
6-8 Using the table below, calculate the AH rxn for each of the following equations. Selected...
6-8 Using the table below, calculate the AH rxn for each of the following equations. Selected Standard Enthalpies of Formation at 25° C (298K) AH (kJ/mol) (kJ/mol Formula AH 0 Silver 92.3 Agis) AgC(3) 0 1270 218 Formula AH (kJ/mol Formula Calcium Ca(s) CI (9) Ca(s) 635.1 HC (G) Caco (s)-1206.9 Hydrogen Hig) Carbon C(graphite) 0 H (9) C(diamond) 1.9 Nitrogen COL) -1105 N19) CO(g) -393.5 NH,(g CH_(9) 74.9 NO(9) CH,OHI) -238.6 Oxygen HỎNG) 133 O.) CS.) 87.9 O (9)...
Calorimetry Problems: AH = m(at), Exercise #6: Enthalpy Problems 300 kg of water cools from 5...
Calorimetry Problems: AH = m(at), Exercise #6: Enthalpy Problems 300 kg of water cools from 5 to 20 How much beat energy was released by the water? Co H2O(l) is 4.180 J/gºC. 4. How much heat energy is required to heat 45 g of sheet Fe from 24°C to 200."C?, of Fe(s) is 0.449 J/gºC. 3. A food chemist combusts 56 g of a chocolate bar in a calorimeter containing 1.5 L of water (density Ho mL). The initial temperature...
I hope the answer is clear and correct thanks Question 1 (1 point) What is the...
I hope the answer is clear and correct thanks
Question 1 (1 point) What is the change in enthalpy (in kJ mol'?) for the following reaction F2(g) + Cabr,(s) CaF() + Brz(1) O 1) -112 kJmo12 O2) 504 kJmo11 03) -504 kJmol 1 04) 537 kJmo11 O 5) -537 kJmol'i Question 2 (1 point) What is true about the following reaction at 25°C? F,(g) + 2HCl(g) 2 2017(g) + H (9) Ahrº=76 kJ mol'i Asr°=-10.13 J mol'i Ki Agrº=79 kJ...
6. Calculate the standard enthal py change for the reaction: CO (g) + H20(g) CO2 (g) + H2 (g) CO (g) H20 (g) CO2 (g) H2 (g) = -110.5 kJ/mol -241.8 kJ/mol -393.5 kJ/mol O kJ/mol 11 a. +41.2 kJ b.-41.2 kJ c. +82.4 kJ d. -82.4 kJ
2. Given the following heats of formation, calculate AH for the reaction 2 CO(g) + 5 H2(g) → C2H6 (g) + 2 H2O(g) Compound AH°F (kJ/mol) Compound AH°F (kJ/mol) 52.28 C₂H6 (8) -84.68 C2H4 (8) -393.5 CO2(g) -241.8 H2O(g) -285.9 CO(g) -110.5 H2O(1)
7) Find AH° for the reaction C3Hg(8) + 5 O2(8) - 3 CO2(8) + 4 H2O(l). AH° = -2046 kJ for the reaction: C3H8(8) + 5 O2(8) - 3 CO2(g) + 4H2O(8) The heat of vaporization of water is 44.0 kJ/mol. The standard enthalpy of formation of water and water vapor are -285.9kj/mol and -241.8 kj/mol, respectively. Note that H20 is a liquid in the first reaction and a gas in the second. 0-1870 kJ 0-2222 kJ O-2002 kJ 0-2090...
Question 3 Propane (C3H8) undergoes combustion according to the following thermochemical equation: C3H8(g) + 5 O2(g) -- 3 CO2(g) + 4H2O(g) Arxn = -2043.0 kJ Substance Heat of Formation (kJ/mol) CO2(g) -393.5 H2O(g) -241.8 O2(g) 0 C3H8(g) ? Calculate the standard enthalpy of formation of propane C3H8 a. -104.7 kJ/mol ob. +1407.7 kJ/mol C. -1407.7 kJ/mol O d. +104.7 kJ/mol o e. -4190.7 kJ/mol
Question 3 Propane (C3Hg) undergoes combustion according to the following thermochemical equation: C3H8(g) + 5 O2(g) - 3 CO2(g) + 4H2O(g) AHrxn=-2043.0 kJ Substance Heat of Formation (kJ/mol) CO2(g) -393.5 H2O(g) -241.8 O2(g) 0 C3H8(g) ? Calculate the standard enthalpy of formation of propane C3Hg a. -104.7 kJ/mol O b. +1407.7 kJ/mol O C. -1407.7 kJ/mol O d. +104.7 kJ/mol o e. -4190.7 kJ/mol uestion 4 Consider the evaporation of liquid water to water vapor at 125°C. What is true...
Question 3 (6 points) What do you need to calculate to determine if this reaction is favorable at room temperature (25 °C)? Is the reaction product favorable? Substance CH() O2(g) CO2(e) H2O(g) H20(1) 2C2H6 (g) + 702 (g) à 4002 (+ 6H2O(1) Hºp (kJ/mol) Gºt (kJ/mol) S (J/K mol) -84.68 -32.89 229.5 205.0 -393.5 -394.4 213.7 -241.8 -228.6 188.8 -285 84 -237.19 69 94 OAH, no AG", no O o o o o o o AS®, yes Asº.no AG", yes...
14- Calculate AH-m for the following reaction: 4 NHs (g) 솨,e,s ? + 5 (g) → 4 NO (g) + 6 H2O (g) Given the following ΔΗ7 values: NHs (g)-45.9 kJ/mol NO (g) +91.3 kJ/mol H20 (g)-241.8 kJ/mol A) 1632 kJ B) 1632 kJ C) 1269 kJ D) 902 kJ E) Δ1p value for O2 is needed 15- Which electron configuration does not represent the Pauli exclusion A) B) s 2 C) 1s 2 2 D) 1s 2s E) 1s...
6-8 Using the table below, calculate the AH rxn for each of the following equations. Selected Standard Enthalpies of Formation at 25° C (298K) AH (kJ/mol) (kJ/mol Formula AH 0 Silver 92.3 Agis) AgC(3) 0 1270 218 Formula AH (kJ/mol Formula Calcium Ca(s) CI (9) Ca(s) 635.1 HC (G) Caco (s)-1206.9 Hydrogen Hig) Carbon C(graphite) 0 H (9) C(diamond) 1.9 Nitrogen COL) -1105 N19) CO(g) -393.5 NH,(g CH_(9) 74.9 NO(9) CH,OHI) -238.6 Oxygen HỎNG) 133 O.) CS.) 87.9 O (9)...
Calorimetry Problems: AH = m(at), Exercise #6: Enthalpy Problems 300 kg of water cools from 5 to 20 How much beat energy was released by the water? Co H2O(l) is 4.180 J/gºC. 4. How much heat energy is required to heat 45 g of sheet Fe from 24°C to 200."C?, of Fe(s) is 0.449 J/gºC. 3. A food chemist combusts 56 g of a chocolate bar in a calorimeter containing 1.5 L of water (density Ho mL). The initial temperature...
I hope the answer is clear and correct thanks
Question 1 (1 point) What is the change in enthalpy (in kJ mol'?) for the following reaction F2(g) + Cabr,(s) CaF() + Brz(1) O 1) -112 kJmo12 O2) 504 kJmo11 03) -504 kJmol 1 04) 537 kJmo11 O 5) -537 kJmol'i Question 2 (1 point) What is true about the following reaction at 25°C? F,(g) + 2HCl(g) 2 2017(g) + H (9) Ahrº=76 kJ mol'i Asr°=-10.13 J mol'i Ki Agrº=79 kJ...
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