Starting from the appropriate free energies of formation (provided below) calculate the values of ∆G° (in...
Starting from the appropriate free energies of formation (provided below) calculate the values of ∆G° (in kJ) and E°cell (in V) at 298 K for the following reaction, 2 Na(s) + 2 H2O(l) <-----> 2 Na+(aq) + 2 OH-(aq) + H2(g) DfG°(Na(s)) = 0.00 kJ mol-1 DfG°(H2O(l)) = -237.13 kJ mol-1 DfG°(Na+(aq)) = -261.91 kJ mol-1 DfG°(OH-(aq)) = -157.24 kJ mol-1 DfG°(H2(g)) = 0.00 kJ mol-1
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Starting from the appropriate free energies of formation
(provided below) calculate the values of ∆G° (in...
Starting from the appropriate free energies of formation (provided below) calculate the values of ∆G° (in...
Starting from the appropriate free energies of formation (provided below) calculate the values of ∆G° (in kJ) and E°cell (in V) at 298 K for the following reaction, 2 Cu+(aq) -----> Cu2+(aq) + Cu(s) DGf°(Cu+(aq)) = 49.98 kJ mol-1 DfG°(Cu2+(aq)) = 65.49 kJ mol-1 DfG°(Cu(s)) = 0.00 kJ mol-1
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
Consider the following values of standard enthalpies and free energies of formation at 298 K: Chemical...
Consider the following values of standard enthalpies and free energies of formation at 298 K: Chemical Species C2H2(g) C2H6(g) AH (kJ mol-') +228 -84 AGI° (kJ moll) +211 -32 Determine whether the reaction: C2H2(g) + 2 H2(g) → C2H6(g) is: • spontaneous and exothermic • spontaneous but endothermic • non-spontaneous and exothermic • non-spontaneous but endothermic Show your working
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
The standard Gibbs energies of formation for Cu2+ (aq) and Fe3+ (aq) are 65.49 kJ mol-1...
The standard Gibbs energies of formation for Cu2+ (aq) and Fe3+ (aq) are 65.49 kJ mol-1 and -4.7 kJ mol-1 respectively. What is the standard potential (Volts) at 298 K for the cell: 3Cu2+(aq) + 2Fe(s) + 2Fe3+ (aq) + 3Cu(s)
Consider the following chemical reaction and free energies of formation in the table: 4 NH3(g) +...
Consider the following chemical reaction and free energies of formation in the table: 4 NH3(g) + 7 O2(g) → 4 NO2(g) + 6 H2O(l) Calculate ∆G°rxn (kJ) for the reaction. Only enter a numerical value. Products or reactants ∆G°f, kJ/mol NH3(g) -17 O2(g) 0 NO2(g) +52 H2O(l) -237
(6 pts.) Using Hess’s Law and the values for Standard Enthalpies of Formation from the table...
(6 pts.) Using Hess’s Law and the values for Standard Enthalpies of Formation from the table provided, calculate the enthalpy of reaction ΔH°rxn (in kJ) for each of the following reactions: Standard Enthalpies of Formation substance ΔHf° in kJ/mol Mg(s) 0 MgO(s) -601.6 HCl(aq) -167.2 MgCl2(aq) -801.2 H2(g) 0 H2O(l) -285.8 Reaction #1: Mg (s) + 2HCl (aq) è MgCl2 (aq) + H2 (g) Reaction #2: MgO (s) + 2HCl (aq) è MgCl2 (aq) + H2O (l) 2. (4 pts.)...
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
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
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
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
Consider the following values of standard enthalpies and free energies of formation at 298 K: Chemical Species C2H2(g) C2H6(g) AH (kJ mol-') +228 -84 AGI° (kJ moll) +211 -32 Determine whether the reaction: C2H2(g) + 2 H2(g) → C2H6(g) is: • spontaneous and exothermic • spontaneous but endothermic • non-spontaneous and exothermic • non-spontaneous but endothermic Show your working
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
The standard Gibbs energies of formation for Cu2+ (aq) and Fe3+ (aq) are 65.49 kJ mol-1 and -4.7 kJ mol-1 respectively. What is the standard potential (Volts) at 298 K for the cell: 3Cu2+(aq) + 2Fe(s) + 2Fe3+ (aq) + 3Cu(s)
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
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