2. Calculate the enthalpy for the reaction below at standard conditions using Appendix G in your textbook. [Report the answer to three sig fig, without unit labels, and using +/- signs to indicate if the reaction is endo- or exothermic.] 2 Al(s) + Fe2O3(s) --> Al2O3(s) + 2 Fe(s)
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2. Calculate the enthalpy for the reaction below at standard
conditions using Appendix G in your...
In the Check Your Learning section how did they get that value of K? Calculating an...
In the Check Your Learning section how did they get that value
of K?
Calculating an Equilibrium Constant using Standard Free Energy Change Given that the standard free energies of formation of Ag'(aq), CI (aq), and AgCl(s) are 77.1 kJ/mol, -131.2 kJ/mol, and -109.8 kJ/mol, respectively, calculate the solubility product, Ksp, for AgCl. Solution The reaction of interest is the following: Ag (aq) +CI (aq) Ksp [Ag ICI] AgCl(s) The standard free energy change for this reaction is first computed...
17. For the reaction: 4 Al (s) + 3 O2 (g) ? 2 A1203 (s), what...
17. For the reaction: 4 Al (s) + 3 O2 (g) ? 2 A1203 (s), what is the value of ASuniv under standard conditions? ??? (Al2O3 (s) ,--1676 kJ mol-1, S° (A203 (s) 50.92 J mol1 K-, So (Alo) 28.33 J mo-1K-1, S (02() 205.1 J mol- K-1 A. -11.88 kJ K- B. 4.997 kJ K-1 C. 5.478 kJ K-1 D. 6.25 kJ K-1 E. 10.62 kJ K-
Calculate the standard change in Gibbs free energy, AG , for the given reaction at 25.0...
Calculate the standard change in Gibbs free energy, AG , for the given reaction at 25.0 "C. Consult the table of thermodynamic properties for standard Gibbs free energy of formation values. NH, CI() = NH(aq) + Cl" (aq) AGxn = kJ/mol Determine the concentration of NH(aq) if the change in Gibbs free energy, AGx. for the reaction is -9.39 kJ/mol. INH1 = Thermodynamic Properties at 298 K So 0 1 ΔΗ kJ/mol 0 105.8 -31.1 -32.6 -100.4 -127.0 -61.8 -124.4...
4. From the standard free energy values in Tro, Appendix 2, calculate the standard free energy ch...
4. From the standard free energy values in Tro, Appendix 2, calculate the standard free energy changes for the following reactions at 25 °C C. 2C2H6 (g) + 702 (g) →4C02 (g) + 6H20() 2A Thermodynamic Data at 25°C Inorganic Substances Enthalpy of formati Fee energyMolar heat Molar mass, on, of f ormation, Molar entropy, Substance Alis) Al(aq) Al,Ols) Al OH)s) 26.98 26.98 101.96 78.00 133.33 0 0 481.2 24.35 524.7 -1675.7 321.7 79.04 50.92 -704.2 110.67 Sbis) 0 0...
C Using the heats of formation below, calculate the heat of reaction for the following reaction:...
C Using the heats of formation below, calculate the heat of reaction for the following reaction: CH4(g) + H2O(g) → C2H5OH(E) AH® (kJ/mol) C2H4(g) 52.26 H2O(g) -241.8 C2H5OH(E) -235.1 kJ d Using the heats of formation below, calculate the heat of reaction for the following reaction: Fe2O3(s) + 2Al(s) - A1203(s) + 2Fe(s) AH(kJ/mol) Fe2O3(s) -824.2 Al(s) 0 Al2O3(s) -1676 Fe(s) 0 KJ
(References TUTOR Entropy Change: Predict Sign, Calculate from Standard Entropy Values Consider the reaction CO(g) +...
(References TUTOR Entropy Change: Predict Sign, Calculate from Standard Entropy Values Consider the reaction CO(g) + H20(1)—CO2(g) + H2(g) Based upon the stoichiometry of the reaction the sign of AS rxn should be Using standard thermodynamic data, calculate AS rxn at 25°C. positive negative ASDXD J/K mol Submit Show Approach Show Tutor Steps Submit Answer Retry Entire Group 9 more group attempts remaining Selected Thermodynamic Data at 298.15 Kelvin Aluminum, Barium, Beryllium, Bromine, Cadmium, Calcium, Carbon, Chlorine, Chromium, Copper, Fluorine,...
Calculate the standard change in Gibbs free energy for the reaction at 25 °C. Standard Gibbs...
Calculate the standard change in Gibbs free energy for the reaction at 25 °C. Standard Gibbs free energy of formation values can be found in this table. 3H2(g) + Fe,0,($) 2Fe(s) + 3 H,0 () AGran kJ/mol Thermodynamic Properties at 298 K S° Substance Ag(s) Ag+(aq) Ag2O(s) Ag2S(s) AgBr(s) AgCl(s) AgI(S) AgNO3(s) Al(s) Al2O3(s) AlCl3(s) Ar(9) As(s) As2O5(s) AsCl3(1) Au(s) Ba(s) BaCl2(s) BaCO3(s) Bao(s) BaSO4(s) B(s) B203(s) AH kJ/mol 0 105.8 -31.1 -32.6 -100.4 -127.0 -61.8 -124.4 0 -1675.7 -704.2...
Given that: 2Al(s)+(3/2)O2(g)--->Al2O3(s) change in H(rxn)= -1601 kJ/mol 2Fe(s)+(3/2)O2(g)--->Fe2O3(s) change in H(rxn)= -821 kJ/mol Calculate the standard enthalpy change for the following reaction: 2Al(s)+Fe2O3(s)--->2Fe(s)+Al2O3(s)
Given that: 2Al(s)+(3/2)O2(g)--->Al2O3(s) change in H(rxn)= -1601 kJ/mol 2Fe(s)+(3/2)O2(g)--->Fe2O3(s) change in H(rxn)= -821 kJ/mol Calculate the standard enthalpy change for the following reaction: 2Al(s)+Fe2O3(s)--->2Fe(s)+Al2O3(s) _______kJ
Calculate the standard change in Gibbs free energy for the reaction at 25 °C. Standard Gibbs...
Calculate the standard change in Gibbs free energy for the reaction at 25 °C. Standard Gibbs free energy of formation values can be found in this table. 6 Cl(g)+2 Fe,O,(s)4 FeCl, (s)+30,(g) kJ/mol AGn= Thermodynamic Properties at 298 K Organic Compounds AG kJ/mol /(mol-K) дне kJ/mol Substance Name Formula дне kJ/mol Ag(s) Ag (aq) Ag20(s) Ag2S(s) AgBr(s) AgC(s) Agl(s) AgNO3(s) Al(s) Al2O3(s) AICI3(s) 0 42.6 105.8 77.107 73.4 Methane CH4(9) СHа(о) -74.6) -84.0 -103.8 -11.2 -31.1 121.3 Ethane -32.6 -40.7...
Using enthalpies of formation (Appendix C), calculate ΔH ° for the following reaction at 25°C. Also...
Using enthalpies of formation
(Appendix C), calculate ΔH ° for the following reaction at 25°C.
Also calculate ΔS ° for this reaction from standard entropies at
25°C. Use these values to calculate ΔG ° for the reaction at this
temperature. COCl2(g) + H2O(l ) h CO2(g) + 2HCl(g).
Appendix C Thermodynamic Quantities for Substances and Ions at 25°C Substance or lon AH; (kW/mol) 0 AG: (kJ/mol) 0 S° (J/mol-K) 20.87 ΔΗ, (kJ/mol) -946.3 - 33422 AG; {kj/mol) --859,3 -2793 (J/mol-K)...
In the Check Your Learning section how did they get that value
of K?
Calculating an Equilibrium Constant using Standard Free Energy Change Given that the standard free energies of formation of Ag'(aq), CI (aq), and AgCl(s) are 77.1 kJ/mol, -131.2 kJ/mol, and -109.8 kJ/mol, respectively, calculate the solubility product, Ksp, for AgCl. Solution The reaction of interest is the following: Ag (aq) +CI (aq) Ksp [Ag ICI] AgCl(s) The standard free energy change for this reaction is first computed...
17. For the reaction: 4 Al (s) + 3 O2 (g) ? 2 A1203 (s), what is the value of ASuniv under standard conditions? ??? (Al2O3 (s) ,--1676 kJ mol-1, S° (A203 (s) 50.92 J mol1 K-, So (Alo) 28.33 J mo-1K-1, S (02() 205.1 J mol- K-1 A. -11.88 kJ K- B. 4.997 kJ K-1 C. 5.478 kJ K-1 D. 6.25 kJ K-1 E. 10.62 kJ K-
Calculate the standard change in Gibbs free energy, AG , for the given reaction at 25.0 "C. Consult the table of thermodynamic properties for standard Gibbs free energy of formation values. NH, CI() = NH(aq) + Cl" (aq) AGxn = kJ/mol Determine the concentration of NH(aq) if the change in Gibbs free energy, AGx. for the reaction is -9.39 kJ/mol. INH1 = Thermodynamic Properties at 298 K So 0 1 ΔΗ kJ/mol 0 105.8 -31.1 -32.6 -100.4 -127.0 -61.8 -124.4...
4. From the standard free energy values in Tro, Appendix 2, calculate the standard free energy changes for the following reactions at 25 °C C. 2C2H6 (g) + 702 (g) →4C02 (g) + 6H20() 2A Thermodynamic Data at 25°C Inorganic Substances Enthalpy of formati Fee energyMolar heat Molar mass, on, of f ormation, Molar entropy, Substance Alis) Al(aq) Al,Ols) Al OH)s) 26.98 26.98 101.96 78.00 133.33 0 0 481.2 24.35 524.7 -1675.7 321.7 79.04 50.92 -704.2 110.67 Sbis) 0 0...
C Using the heats of formation below, calculate the heat of reaction for the following reaction: CH4(g) + H2O(g) → C2H5OH(E) AH® (kJ/mol) C2H4(g) 52.26 H2O(g) -241.8 C2H5OH(E) -235.1 kJ d Using the heats of formation below, calculate the heat of reaction for the following reaction: Fe2O3(s) + 2Al(s) - A1203(s) + 2Fe(s) AH(kJ/mol) Fe2O3(s) -824.2 Al(s) 0 Al2O3(s) -1676 Fe(s) 0 KJ
(References TUTOR Entropy Change: Predict Sign, Calculate from Standard Entropy Values Consider the reaction CO(g) + H20(1)—CO2(g) + H2(g) Based upon the stoichiometry of the reaction the sign of AS rxn should be Using standard thermodynamic data, calculate AS rxn at 25°C. positive negative ASDXD J/K mol Submit Show Approach Show Tutor Steps Submit Answer Retry Entire Group 9 more group attempts remaining Selected Thermodynamic Data at 298.15 Kelvin Aluminum, Barium, Beryllium, Bromine, Cadmium, Calcium, Carbon, Chlorine, Chromium, Copper, Fluorine,...
Calculate the standard change in Gibbs free energy for the reaction at 25 °C. Standard Gibbs free energy of formation values can be found in this table. 3H2(g) + Fe,0,($) 2Fe(s) + 3 H,0 () AGran kJ/mol Thermodynamic Properties at 298 K S° Substance Ag(s) Ag+(aq) Ag2O(s) Ag2S(s) AgBr(s) AgCl(s) AgI(S) AgNO3(s) Al(s) Al2O3(s) AlCl3(s) Ar(9) As(s) As2O5(s) AsCl3(1) Au(s) Ba(s) BaCl2(s) BaCO3(s) Bao(s) BaSO4(s) B(s) B203(s) AH kJ/mol 0 105.8 -31.1 -32.6 -100.4 -127.0 -61.8 -124.4 0 -1675.7 -704.2...
Calculate the standard change in Gibbs free energy for the reaction at 25 °C. Standard Gibbs free energy of formation values can be found in this table. 6 Cl(g)+2 Fe,O,(s)4 FeCl, (s)+30,(g) kJ/mol AGn= Thermodynamic Properties at 298 K Organic Compounds AG kJ/mol /(mol-K) дне kJ/mol Substance Name Formula дне kJ/mol Ag(s) Ag (aq) Ag20(s) Ag2S(s) AgBr(s) AgC(s) Agl(s) AgNO3(s) Al(s) Al2O3(s) AICI3(s) 0 42.6 105.8 77.107 73.4 Methane CH4(9) СHа(о) -74.6) -84.0 -103.8 -11.2 -31.1 121.3 Ethane -32.6 -40.7...
Using enthalpies of formation
(Appendix C), calculate ΔH ° for the following reaction at 25°C.
Also calculate ΔS ° for this reaction from standard entropies at
25°C. Use these values to calculate ΔG ° for the reaction at this
temperature. COCl2(g) + H2O(l ) h CO2(g) + 2HCl(g).
Appendix C Thermodynamic Quantities for Substances and Ions at 25°C Substance or lon AH; (kW/mol) 0 AG: (kJ/mol) 0 S° (J/mol-K) 20.87 ΔΗ, (kJ/mol) -946.3 - 33422 AG; {kj/mol) --859,3 -2793 (J/mol-K)...
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