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6 Using standard enthalpies of fomation and standard...
Please help with #4&5. Will rate high is answers are correct. Thank you! 4. Using the...
Please help with #4&5. Will rate high is answers are
correct. Thank you!
4. Using the given standard molar entropies, calculate the standard entropy change, AS, for the following reaction at 298 K: 2 H2(g) + O2(g) → 2 H20(1) O2(g) 205.0 (H2O(1) 79.91 H2(g) Sº (J/K) 130.58 a) 326.3J/K b) 88.5 J/K c) 306.34 J/K d) -306.34 J/K e) -386.25 J/K 5. Calculate the standard free-energy change for the formation of NO(g) from N2(g) and O2(g) at 298 K:...
Using the table of standard entropies and enthalpies of formation, calculate AH°, ASº, and AG° for...
Using the table of standard entropies and enthalpies of formation, calculate AH°, ASº, and AG° for the following reactions at 298.15 K. (Use only the table of standard entropies and standard enthalpies of formation, not the table of standard Gibbs free energies.) kJ AH; () AS; mol-K mol Compound C(s) 5.7 CO(g) -110.5 197.7 The equation SiO2(s) + 2 Mg(s) Si(s) + 2 CO2(g) -393.5 213.8 MgO(s) C2(g) 223.1 H2(g) 130.7 • AH° kJ HCl(g) 186.9 -92.3 • AS° MK...
8. From standard enthalpies of formation, standard entropies, and standard heat capacities available from tables in...
8. From standard enthalpies of formation, standard entropies, and standard heat capacities available from tables in the Data section (pp 572-579), calculate the standard enthalpies and entropies at 298 K and 398 K for the reaction CO2(g)+ H2(g) -> CO(g) + H20(g). Assume that the heat capacities are constant over the temperature range involved. Recall that the standard reaction enthalpy and entropy are given by Products Reactants 0 7n 0 Products Reactants List the fundamental concepts involved in this problem.]
please answer 17a,b,c 17. Using values for the standard enthalpies of formation (AHY) and standard molar...
please answer 17a,b,c
17. Using values for the standard enthalpies of formation (AHY) and standard molar entropy (AS on the Appendix, calculate the following thermodynamic values for the complete combustion of ethanol: (10 points) C2H5OH(g) + 302(g) → 2CO2(g) + 3H2O(g) a) The standard enthalpy change (AHº) b) The standard entropy change (AS) c) Use values from a) and b) above to calculate AG° at 298K Formula SU/(K-mol 160 TABLE 16.1 Standard Molar Entropies for Some Common Substances at 25...
please help with these Fe2O3(s) + 3H2(g) +2Fe(s) + 3H2O(g) Using standard absolute entropies at 298K,...
please help with these
Fe2O3(s) + 3H2(g) +2Fe(s) + 3H2O(g) Using standard absolute entropies at 298K, calculate the entropy change for the system when 2.37 moles of Fe2O3() react at standard conditions. AS system JK 2CO(g) + O2(g) +2CO2(g) Using standard absolute entropies at 298K, calculate the entropy change for the system when 1.54 moles of CO(g) react at standard conditions. AS system JK 2NH3(g) + 3N20(g)— 4N2(g) + 3H2O(g) AH = -879.5 kJ and AS° = 288.1 J/K The...
9 Please help is due in 30 mins, will rate, Thank you! AGº for the reaction...
9 Please help is due in 30 mins,
will rate, Thank you!
AGº for the reaction 2 A(g) = 3 B(g) is -25.5 kJ/mol. What is the value of AG (in kJ/mol) at 298 K when the pressure of each gas is: A = (1.17x10^-5) atm and B = (5.5100x10^0) atm.
(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.)...
help please! thnx 4. Consider the equilibrium in which solid calcium carbonate decomposes to the oxide...
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4. Consider the equilibrium in which solid calcium carbonate decomposes to the oxide plus carbon dioxide CaCO3(s) CaO(s) + CO2(g) Write down an expression for the equilibrium constant of this reaction in terms of the partial pressure of CO2. The standard enthalpies of formation of CaCO3(s), CO2(g) and CaO(s) are -1207.6 kJ mol", -393.5 kJ mol' and -634.9 kJ mol? respectively, and the standard entropies are 91.7JK'mol, 213.8JK' mol and 38.1 J K mol' (all at 298...
Part A Use standard enthalpies of formation to calculate A n for the following reaction: 2H,...
Part A Use standard enthalpies of formation to calculate A n for the following reaction: 2H, S(g) + 302 (g)+2H, O(1) + 2S02 () Express your answer using four significant figures. YO ALQ * R O 2 ? AH,n= Submit Request Answer Part B Use standard enthalpies of formation to calculate AHan for the following reaction: SO2(g) + O2(g)SO3(g) Express your answer using three significant figures. 90 ALM + A o ai ? ΔΗΣΗ Submit Request Answer Part C Use...
Please help! Thank you so much 6. An object can be electroplated with a layer of...
Please help! Thank you so much
6. An object can be electroplated with a layer of solid chromium by submerging it in an aqueous mixture of Croz and H2SO4 and applying a current. a. Write the net ionic equation for the electroplating half-reaction. (5 pts) b. Calculate the time required to electroplate 27.5 g of chromium at a current of 25 A. Express the final answer in hours. (5 Answer: 7. Sulfuric acid is produced through the reaction of sulfur...
Please help with #4&5. Will rate high is answers are
correct. Thank you!
4. Using the given standard molar entropies, calculate the standard entropy change, AS, for the following reaction at 298 K: 2 H2(g) + O2(g) → 2 H20(1) O2(g) 205.0 (H2O(1) 79.91 H2(g) Sº (J/K) 130.58 a) 326.3J/K b) 88.5 J/K c) 306.34 J/K d) -306.34 J/K e) -386.25 J/K 5. Calculate the standard free-energy change for the formation of NO(g) from N2(g) and O2(g) at 298 K:...
Using the table of standard entropies and enthalpies of formation, calculate AH°, ASº, and AG° for the following reactions at 298.15 K. (Use only the table of standard entropies and standard enthalpies of formation, not the table of standard Gibbs free energies.) kJ AH; () AS; mol-K mol Compound C(s) 5.7 CO(g) -110.5 197.7 The equation SiO2(s) + 2 Mg(s) Si(s) + 2 CO2(g) -393.5 213.8 MgO(s) C2(g) 223.1 H2(g) 130.7 • AH° kJ HCl(g) 186.9 -92.3 • AS° MK...
8. From standard enthalpies of formation, standard entropies, and standard heat capacities available from tables in the Data section (pp 572-579), calculate the standard enthalpies and entropies at 298 K and 398 K for the reaction CO2(g)+ H2(g) -> CO(g) + H20(g). Assume that the heat capacities are constant over the temperature range involved. Recall that the standard reaction enthalpy and entropy are given by Products Reactants 0 7n 0 Products Reactants List the fundamental concepts involved in this problem.]
please answer 17a,b,c
17. Using values for the standard enthalpies of formation (AHY) and standard molar entropy (AS on the Appendix, calculate the following thermodynamic values for the complete combustion of ethanol: (10 points) C2H5OH(g) + 302(g) → 2CO2(g) + 3H2O(g) a) The standard enthalpy change (AHº) b) The standard entropy change (AS) c) Use values from a) and b) above to calculate AG° at 298K Formula SU/(K-mol 160 TABLE 16.1 Standard Molar Entropies for Some Common Substances at 25...
please help with these
Fe2O3(s) + 3H2(g) +2Fe(s) + 3H2O(g) Using standard absolute entropies at 298K, calculate the entropy change for the system when 2.37 moles of Fe2O3() react at standard conditions. AS system JK 2CO(g) + O2(g) +2CO2(g) Using standard absolute entropies at 298K, calculate the entropy change for the system when 1.54 moles of CO(g) react at standard conditions. AS system JK 2NH3(g) + 3N20(g)— 4N2(g) + 3H2O(g) AH = -879.5 kJ and AS° = 288.1 J/K The...
9 Please help is due in 30 mins,
will rate, Thank you!
AGº for the reaction 2 A(g) = 3 B(g) is -25.5 kJ/mol. What is the value of AG (in kJ/mol) at 298 K when the pressure of each gas is: A = (1.17x10^-5) atm and B = (5.5100x10^0) atm.
help please! thnx
4. Consider the equilibrium in which solid calcium carbonate decomposes to the oxide plus carbon dioxide CaCO3(s) CaO(s) + CO2(g) Write down an expression for the equilibrium constant of this reaction in terms of the partial pressure of CO2. The standard enthalpies of formation of CaCO3(s), CO2(g) and CaO(s) are -1207.6 kJ mol", -393.5 kJ mol' and -634.9 kJ mol? respectively, and the standard entropies are 91.7JK'mol, 213.8JK' mol and 38.1 J K mol' (all at 298...
Part A Use standard enthalpies of formation to calculate A n for the following reaction: 2H, S(g) + 302 (g)+2H, O(1) + 2S02 () Express your answer using four significant figures. YO ALQ * R O 2 ? AH,n= Submit Request Answer Part B Use standard enthalpies of formation to calculate AHan for the following reaction: SO2(g) + O2(g)SO3(g) Express your answer using three significant figures. 90 ALM + A o ai ? ΔΗΣΗ Submit Request Answer Part C Use...
Please help! Thank you so much
6. An object can be electroplated with a layer of solid chromium by submerging it in an aqueous mixture of Croz and H2SO4 and applying a current. a. Write the net ionic equation for the electroplating half-reaction. (5 pts) b. Calculate the time required to electroplate 27.5 g of chromium at a current of 25 A. Express the final answer in hours. (5 Answer: 7. Sulfuric acid is produced through the reaction of sulfur...
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