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Tutored Practice Problem 20.3.1 COUNTS TOWARDS GRADE Calculate standard free energy change using ΔHr and So...
Close Problem Tutored Practice Problem 19.3.1 COUNTS TOWARDS GRADE Calculate standard free energy change using AH and S...
Close Problem Tutored Practice Problem 19.3.1 COUNTS TOWARDS GRADE Calculate standard free energy change using AH and So values. Consider the reaction CH4(g) + H2O(g)—_>3H2(g) + CO(g) Calculate the standard free energy change for this reaction at 25°C from AHºrn and AS rxn: AGºrxn = kJ/mol Check & Submit Answer Show Approach
Tutored Practice Problem 10.6.2 COUNTS TOWARDS GRADE Calculate enthalpy change using standard heats of formation. Using...
Tutored Practice Problem 10.6.2 COUNTS TOWARDS GRADE Calculate enthalpy change using standard heats of formation. Using the standard heats of formation that follow, calculate the standard enthalpy change for the following reaction. H2S(g) 2H20(I) »3H2(g) +SO2(g) AH rxn kJ Species AHf(kJ/mol H2S(g) -20.6 H2O(D -285.8 SO2(g) -296.8 Check & Submit Answer Show Approach
Tutored Practice Problem 19.3.4 COUNTS TOWARDS GRADE Calculate the equilibrium constant from the standard free energy...
Tutored Practice Problem 19.3.4 COUNTS TOWARDS GRADE Calculate the equilibrium constant from the standard free energy change. Close Pr Using standard thermodynamic data (linked), calculate the equilibrium constant at 298.15 K for the following reaction. N2(g) + O2(g) +2NO(g) K- Check & Submit Answer Show Approach
Tutored Practice Problem 10.4.5 COUNTS TOWARDS GRADE Use constant-volume calorimetry to determine energy change. Close Problem...
Tutored Practice Problem 10.4.5 COUNTS TOWARDS GRADE Use constant-volume calorimetry to determine energy change. Close Problem A 1.04-g sample of glutaric acid (CH3O4) is burned in a bomb calorimeter and the temperature increases from 26.00 °C to 28.90 °C. The calorimeter contains 1.13x103 g of water and the bomb has a heat capacity of 872 J/°C. Based on this experiment, calculate AE for the combustion reaction per mole of glutaric acid burned (kJ/mol) ΔΕ - kJ/mol CHO4(s)5 02(g)5 CO2(g)+4 H20(1...
Tululu Piallite PIUDICI 19.3.2 COUNTS TOWARDS GRADE LIUSCITUDIN Calculate standard free energy change using AG values....
Tululu Piallite PIUDICI 19.3.2 COUNTS TOWARDS GRADE LIUSCITUDIN Calculate standard free energy change using AG values. Consider the reaction 2NH3(g) + 202(g)—>N2O(g) + 3H2O(1) Use standard free energies of formation to calculate the standard free energy change for this reaction at 25°C. AGºrxn = kJ/mol Check & Submit Answer Show Approach
Tutored Practice Problem 19.3.5 COUNTS TOWARDS GRADE Calculate temperature at which AGº changes sign. Close Calculate...
Tutored Practice Problem 19.3.5 COUNTS TOWARDS GRADE Calculate temperature at which AGº changes sign. Close Calculate the temperature (in kelvins) at which the sign of AGº changes from positive to negative for the reaction below. This corresponds to the temperature at which K<1 changes to K > 1. Assume that AH and AS are constant and do not change with temperature, Fe304(8) + 4H2(e) 3Fe(8) + 4H2O(g) AH° - 151 kJ/mol and AS - 169 J/K: mol Check & Submit...
Tutored Practice Problem 10.5.1 COUNTS TOWARDS GRADE Use Hess's law to calculate enthalpy change. Given the...
Tutored Practice Problem 10.5.1 COUNTS TOWARDS GRADE Use Hess's law to calculate enthalpy change. Given the following two reactions: (1)Ca(s) + Cl2(9—+CaCl(s) AH(1) = -795.8 kJ (2)Hg(1) + Cl2(9) HgCl2(8) AH(2) = -224.3 kJ calculate the enthalpy change for the following reaction: (3) Ca(s) + HgC12(3)— CaCl2(S) + Hg(1) AH(3)=[ Check & Submit Answer Show Approach
Tutored Practice Problem 10.6.1 COUNTS TOWARDS GRADE Use and interpret standard heats of formation. (a) Write the balan...
Tutored Practice Problem 10.6.1 COUNTS TOWARDS GRADE Use and interpret standard heats of formation. (a) Write the balanced chemical equation that represents the standard heat of formation of Mgo(s) at 298 K. Use the pull-down boxes to specify states. Write fractions with a slash, such as 1/2 for one half. If a box is not needed leave it blank. (b) The standard enthalpy change for the following reaction is 2.14x103 kJ at 298 K. UF6(8)—U(S) + 3 F2(9) What is...
Tutored Practice Problem 3.3.4 COUNTS TOWARDS GRADE Use reaction stoichiometry to calculate amounts of reactants and...
Tutored Practice Problem 3.3.4 COUNTS TOWARDS GRADE Use reaction stoichiometry to calculate amounts of reactants and products. t GRAD use reaction stoichio The substances nitrogen monoxide and hydrogen gas react to form nitrogen gas and water Unbalanced equation: NO (+H2(g)N2 (g)H0 ) In one reaction, 49.5 g of H20 is produced. What amount (in mol) of H2 was consumed? What mass (in grams) of N2 is produced? mol H2 consumed g N2 produced Check & Submit Answer Show Approach
Tutored Practice Problem 5.4.2 COUNTS TOWARDS GRIDE Use reaction stoichiometry to calculate enthalpy change. The following...
Tutored Practice Problem 5.4.2 COUNTS TOWARDS GRIDE Use reaction stoichiometry to calculate enthalpy change. The following reaction is endothermic. 2 Cdo(s)_2 Cd(s) + 029) 7(1) = 516 kJ Calculate the enthalpy change for the reaction of the elements to form one mole of Cdo(s). Cd(s) + 1/2 02(9) C10() AH(2) = Check & Submit Answer Show Approach
Close Problem Tutored Practice Problem 19.3.1 COUNTS TOWARDS GRADE Calculate standard free energy change using AH and So values. Consider the reaction CH4(g) + H2O(g)—_>3H2(g) + CO(g) Calculate the standard free energy change for this reaction at 25°C from AHºrn and AS rxn: AGºrxn = kJ/mol Check & Submit Answer Show Approach
Tutored Practice Problem 10.6.2 COUNTS TOWARDS GRADE Calculate enthalpy change using standard heats of formation. Using the standard heats of formation that follow, calculate the standard enthalpy change for the following reaction. H2S(g) 2H20(I) »3H2(g) +SO2(g) AH rxn kJ Species AHf(kJ/mol H2S(g) -20.6 H2O(D -285.8 SO2(g) -296.8 Check & Submit Answer Show Approach
Tutored Practice Problem 19.3.4 COUNTS TOWARDS GRADE Calculate the equilibrium constant from the standard free energy change. Close Pr Using standard thermodynamic data (linked), calculate the equilibrium constant at 298.15 K for the following reaction. N2(g) + O2(g) +2NO(g) K- Check & Submit Answer Show Approach
Tutored Practice Problem 10.4.5 COUNTS TOWARDS GRADE Use constant-volume calorimetry to determine energy change. Close Problem A 1.04-g sample of glutaric acid (CH3O4) is burned in a bomb calorimeter and the temperature increases from 26.00 °C to 28.90 °C. The calorimeter contains 1.13x103 g of water and the bomb has a heat capacity of 872 J/°C. Based on this experiment, calculate AE for the combustion reaction per mole of glutaric acid burned (kJ/mol) ΔΕ - kJ/mol CHO4(s)5 02(g)5 CO2(g)+4 H20(1...
Tululu Piallite PIUDICI 19.3.2 COUNTS TOWARDS GRADE LIUSCITUDIN Calculate standard free energy change using AG values. Consider the reaction 2NH3(g) + 202(g)—>N2O(g) + 3H2O(1) Use standard free energies of formation to calculate the standard free energy change for this reaction at 25°C. AGºrxn = kJ/mol Check & Submit Answer Show Approach
Tutored Practice Problem 19.3.5 COUNTS TOWARDS GRADE Calculate temperature at which AGº changes sign. Close Calculate the temperature (in kelvins) at which the sign of AGº changes from positive to negative for the reaction below. This corresponds to the temperature at which K<1 changes to K > 1. Assume that AH and AS are constant and do not change with temperature, Fe304(8) + 4H2(e) 3Fe(8) + 4H2O(g) AH° - 151 kJ/mol and AS - 169 J/K: mol Check & Submit...
Tutored Practice Problem 10.5.1 COUNTS TOWARDS GRADE Use Hess's law to calculate enthalpy change. Given the following two reactions: (1)Ca(s) + Cl2(9—+CaCl(s) AH(1) = -795.8 kJ (2)Hg(1) + Cl2(9) HgCl2(8) AH(2) = -224.3 kJ calculate the enthalpy change for the following reaction: (3) Ca(s) + HgC12(3)— CaCl2(S) + Hg(1) AH(3)=[ Check & Submit Answer Show Approach
Tutored Practice Problem 10.6.1 COUNTS TOWARDS GRADE Use and interpret standard heats of formation. (a) Write the balanced chemical equation that represents the standard heat of formation of Mgo(s) at 298 K. Use the pull-down boxes to specify states. Write fractions with a slash, such as 1/2 for one half. If a box is not needed leave it blank. (b) The standard enthalpy change for the following reaction is 2.14x103 kJ at 298 K. UF6(8)—U(S) + 3 F2(9) What is...
Tutored Practice Problem 3.3.4 COUNTS TOWARDS GRADE Use reaction stoichiometry to calculate amounts of reactants and products. t GRAD use reaction stoichio The substances nitrogen monoxide and hydrogen gas react to form nitrogen gas and water Unbalanced equation: NO (+H2(g)N2 (g)H0 ) In one reaction, 49.5 g of H20 is produced. What amount (in mol) of H2 was consumed? What mass (in grams) of N2 is produced? mol H2 consumed g N2 produced Check & Submit Answer Show Approach
Tutored Practice Problem 5.4.2 COUNTS TOWARDS GRIDE Use reaction stoichiometry to calculate enthalpy change. The following reaction is endothermic. 2 Cdo(s)_2 Cd(s) + 029) 7(1) = 516 kJ Calculate the enthalpy change for the reaction of the elements to form one mole of Cdo(s). Cd(s) + 1/2 02(9) C10() AH(2) = Check & Submit Answer Show Approach
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