Use the standard free energies of formation (ΔGf°) of each substance to determine the value of...
Use the standard free energies of formation (ΔGf°) of each substance to determine the value of equilibrium constant K at 25 °C for the following reaction. Click here for a copy of the Test 3 cover sheet.
CO2(g) + 2 H2(g) ⇌ CH3OH(l)
ΔGf° kJ/mol −394.4 0 −166.4
0
0.91
8.83 × 1039
1.13 × 10−40
Homework Answers
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Use the standard free energies of formation (ΔGf°) of
each substance to determine the value of...
Question 4 1 pts Use the standard free energies of formation (AG) of each substance to...
Question 4 1 pts Use the standard free energies of formation (AG) of each substance to determine the value of equilibrium constant K at 25°C for the following reaction. CO2(g) + 2 H2(g) = CH2OH() AGE® kJ/mol -394.4 0 -166.4 8.83 * 1039 1.13 x 10-40 00 0.91 Question 5 Select ALL that are true for a chemical reaction at equilibrium. AG=0 rate of forward reaction equals the rate of reverse reactions O Q=K OK=1 The reaction has stopped.
Standard free energies of formation, AG, in kj/mol, are given below each reactant and product in...
Standard free energies of formation, AG, in kj/mol, are given below each reactant and product in the reaction shown below. The standard free energy of reaction, AG', for this reaction is kj. Enter your answer as the nearest Integer with no units. CH468) 2 028) -CO2(g) + 2 H200) - 50.8 0 - 394.4 -237.2
Part A Use standard free energies of formation to determine AG for this reaction at 25°...
Part A Use standard free energies of formation to determine AG for this reaction at 25° C. rxn Express the free energy change to four significant figures and include the appropriate units. ? kJ AG Value rXn mol Request Answer Previous Answers Submit XIncorrect; Try Again; 5 attempts remaining You may want to reference (Page) Section 18.8 while completing this problem. G One of the reactions that occurs within a catalytic converter in the exhaust pipe of a car is...
1. 1) luciferin+O2 ⇌ oxyluciferin+light 2) ATP⇌AMP+PPi ΔG∘=−31.6 kJ/mol If the overall ΔG∘ of the coupled...
1. 1) luciferin+O2 ⇌ oxyluciferin+light 2) ATP⇌AMP+PPi ΔG∘=−31.6 kJ/mol If the overall ΔG∘ of the coupled reaction is -1.21 kJ/mol , what is the equilibrium constant, K, of the first reaction at 11∘C? Round your answer to 3 significant figures. 2. When methanol (CH3OH) is combusted, such as when in a gasoline blend, the following reaction occurs: 2CH3OH(l)+3O2(g)→2CO2(g)+4H2O(g) Based on the standard free energies of formation given, what is the standard free energy change for this reaction? Report the answer...
QUESTION 2 Calculate the standard free energy (g/mol) for the reaction 2 CH3OH()) + 3 026)...
QUESTION 2 Calculate the standard free energy (g/mol) for the reaction 2 CH3OH()) + 3 026) - 2 CO2(g) + 4H200) Enter your answer with one decimal place and no units. Species AG°F (kJ/mol) CH3OHC) -166.4 H20 (1) -237.2 CO2 (9) -394.4
Starting with the standard free energies of formation from the following table, calculate the values of...
Starting with the standard free energies of formation from the
following table, calculate the values of ΔG° and E°cell of the
following reactions.
Substance
ΔΔG°f
(kJ/mol)
FeO(s)
-255.2
H2(g)
0
Fe(s)
0
H2O(l)
-237.2
Pb(s)
0
O2(g)
0
H2SO4(aq)
-744.5
PbSO4(s)
-813.0
1) FeO(s) +H2(g) ----Fe(s) +H2O(l)
change in G=18kj
E Cell= v
2) 2Pb(s)+O2(g)+2H2SO4(aq)--------2PbSO4(s)+2H2O(l)
change in G=-611.4
E°cell
= V
1. Based on the standard free energies of formation, which of the following reactions represent a...
1. Based on the standard free energies of formation, which of the following reactions represent a feasible way to synthesize the product? N2(g)+H2(g)?N2H4(g); ?G?f=159.3 kJ/mol 2Na(s)+O2(g)?Na2O2(s); ?G?f=?447.7 kJ/mol C(s)+2S(s)?CS2(g); ?G?f=67.1 kJ/mol Ca(s)+12O2(g)?CaO(s); ?G?f=?604.0 kJ/mol Feasible synthesis Not a feasible synthesis
Based on the standard free energies of formation, which of the following reactions represent a feasible...
Based
on the standard free energies of formation, which of the following
reactions represent a feasible way to synthesize the product? Drag
the appropriate items to their respective bins.
Reset Help 2Na(s) + O2(g) +Na2O2(s) AGE = -451.0 kJ/mol 2CO(g) + O2(g)+2C02(g) AGE = -788.0 kJ/mol N2(g) + O2(g) +2NO(g) AGE = 173.2 kJ/mol 2C(s) + H2(g) +C2H2(g) AGE = 209.2 kJ/mol Feasible synthesis Not a feasible synthesis
Consider a fuel cell that uses the reaction 2C2 H2 (g)502 (g) -» 4CO2(g) 2H20(1) Using...
Consider a fuel cell that uses the reaction 2C2 H2 (g)502 (g) -» 4CO2(g) 2H20(1) Using the standard free energies of formation, what is the value of E for the cell reaction? Substance and State AG (kJ/mol) C2H2 (g) 209.9 CO2 (g) -394.4 H2O(I) -237.2 O2(g) 0 Express your answer with the appropriate units.
Part A Based on the standard free energies of formation, which of the following reactions represent...
Part A Based on the standard free energies of formation, which of the following reactions represent a feasible way to synthesize the product? Drag the appropriate items to their respective bins. View Available Hint(s) Help Reset 2CO(g)+02(8)+2CO2 (g) AG=-788.0 kJ/mol N2 (g)+O2(g)-2NO (g) AG= 173.2 kJ/mol 2Na(s)+02(8) -Na, O, (s) AGi=-451.0 kJ/mol 2C(s)+ H2(g)-C2H2 (8) 209.2 kJ/mol AGi Not a feasible synthesis Feasible synthesis
Question 4 1 pts Use the standard free energies of formation (AG) of each substance to determine the value of equilibrium constant K at 25°C for the following reaction. CO2(g) + 2 H2(g) = CH2OH() AGE® kJ/mol -394.4 0 -166.4 8.83 * 1039 1.13 x 10-40 00 0.91 Question 5 Select ALL that are true for a chemical reaction at equilibrium. AG=0 rate of forward reaction equals the rate of reverse reactions O Q=K OK=1 The reaction has stopped.
Standard free energies of formation, AG, in kj/mol, are given below each reactant and product in the reaction shown below. The standard free energy of reaction, AG', for this reaction is kj. Enter your answer as the nearest Integer with no units. CH468) 2 028) -CO2(g) + 2 H200) - 50.8 0 - 394.4 -237.2
Part A Use standard free energies of formation to determine AG for this reaction at 25° C. rxn Express the free energy change to four significant figures and include the appropriate units. ? kJ AG Value rXn mol Request Answer Previous Answers Submit XIncorrect; Try Again; 5 attempts remaining You may want to reference (Page) Section 18.8 while completing this problem. G One of the reactions that occurs within a catalytic converter in the exhaust pipe of a car is...
QUESTION 2 Calculate the standard free energy (g/mol) for the reaction 2 CH3OH()) + 3 026) - 2 CO2(g) + 4H200) Enter your answer with one decimal place and no units. Species AG°F (kJ/mol) CH3OHC) -166.4 H20 (1) -237.2 CO2 (9) -394.4
Starting with the standard free energies of formation from the
following table, calculate the values of ΔG° and E°cell of the
following reactions.
Substance
ΔΔG°f
(kJ/mol)
FeO(s)
-255.2
H2(g)
0
Fe(s)
0
H2O(l)
-237.2
Pb(s)
0
O2(g)
0
H2SO4(aq)
-744.5
PbSO4(s)
-813.0
1) FeO(s) +H2(g) ----Fe(s) +H2O(l)
change in G=18kj
E Cell= v
2) 2Pb(s)+O2(g)+2H2SO4(aq)--------2PbSO4(s)+2H2O(l)
change in G=-611.4
E°cell
= V
Based
on the standard free energies of formation, which of the following
reactions represent a feasible way to synthesize the product? Drag
the appropriate items to their respective bins.
Reset Help 2Na(s) + O2(g) +Na2O2(s) AGE = -451.0 kJ/mol 2CO(g) + O2(g)+2C02(g) AGE = -788.0 kJ/mol N2(g) + O2(g) +2NO(g) AGE = 173.2 kJ/mol 2C(s) + H2(g) +C2H2(g) AGE = 209.2 kJ/mol Feasible synthesis Not a feasible synthesis
Consider a fuel cell that uses the reaction 2C2 H2 (g)502 (g) -» 4CO2(g) 2H20(1) Using the standard free energies of formation, what is the value of E for the cell reaction? Substance and State AG (kJ/mol) C2H2 (g) 209.9 CO2 (g) -394.4 H2O(I) -237.2 O2(g) 0 Express your answer with the appropriate units.
Part A Based on the standard free energies of formation, which of the following reactions represent a feasible way to synthesize the product? Drag the appropriate items to their respective bins. View Available Hint(s) Help Reset 2CO(g)+02(8)+2CO2 (g) AG=-788.0 kJ/mol N2 (g)+O2(g)-2NO (g) AG= 173.2 kJ/mol 2Na(s)+02(8) -Na, O, (s) AGi=-451.0 kJ/mol 2C(s)+ H2(g)-C2H2 (8) 209.2 kJ/mol AGi Not a feasible synthesis Feasible synthesis
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