Problems of calculation of energy in processes with chemical reactions: The lime is obtained from the...
Problems of calculation of energy in processes with chemical reactions:
The lime is obtained from the calcination of the limestone, according to the following reaction:
CaCO3 (s) 
CaO (s) + CO2(g)
With the above data, determine the amount of heat required to
obtain 100 ton / day of CaO under standard conditions
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Problems of calculation of energy in processes with chemical
reactions:
The lime is obtained from the...
Calcium oxide (Lime) is usually produced by heating and decomposing limestone (CaCO3), a cheap and abundant mineral, in...
Calcium oxide (Lime) is usually produced by heating and decomposing limestone (CaCO3), a cheap and abundant mineral, in a process: CaCO3 (s) CaO (s)+CO2 (g) a) Limestone at 25°C is fed to a continuous calcination reactor. The calcination is complete, and the products leave at 900 °C. Taking 1 metric ton (1000 kg) of limestone as a basis and elemental species [Ca(s), C(s), O2(g)] at 25°C as references for enthalpy calculations, prepare and fill in an inlet-outlet enthalpy table and...
Question 5 Calcium oxide (Lime) is usually produced by heating and decomposing limestone (CaCO3), cheap and abundant mi...
Question 5 Calcium oxide (Lime) is usually produced by heating and decomposing limestone (CaCO3), cheap and abundant mineral, in a process: CaCO3 (s)CaO (s) CO2 (g) a) Limestone at 25°C is fed to a continuous calcination reactor. The calcination is complete, and the products leave at 900 °C. Taking 1 metric ton (1000 kg) of limestone as a basis and elemental species [Ca(s), C(s), O2(g)] at 25°C as references for enthalpy calculations prepare and fill in an inlet-outlet enthalpy table...
Consider the reaction CaCO3(s)Cao(s) + CO2(g The standard free energy change for this reaction is...
Consider the reaction CaCO3(s)Cao(s) + CO2(g The standard free energy change for this reaction is 130.4 kJ. The free energy change when 2.34 moles of CaCO (s) react at standard condition is kJ. What is the maximum amount of useful work that the reaction of 2.34 moles of CaCo,(s) is capable of producing in the surroundings under standard conditions? If no work can be done, enter none kJ
Consider the reaction CaCO3(s)Cao(s) + CO2(g The standard free energy change for...
Limestone stalactites and Stalagmites are formed in caves through the following reaction: Ca2+ (aq) + 2...
Limestone stalactites and Stalagmites are formed in caves through the following reaction: Ca2+ (aq) + 2 HCO3- (aq) ⟶ CaCO3 (s) + H2O (l) + CO2 (g) When 1 mol of CaCO3 (s) forms under standard conditions, it performs 2.48 kJ of work to the surroundings, pushing back the atmosphere as CO2 forms. At the same time, 36.47 kJ of heat is absorbed from the environment. How much did the internal energy of the reaction change during this process? Consider...
14K 8.3 Heat Energy and Chemical Reactions 9. A synthetic fuel blend is tested by bomb...
14K 8.3 Heat Energy and Chemical Reactions 9. A synthetic fuel blend is tested by bomb calorimetry. It is found that an 80.10 Sample teens 28,096 kJ of heat. What is the fuel value of this blend, in k/? 10. Is the following reaction endothermic/exothermic? AH...= -1,269.8W 2 Ca (s) + O2 (g) → 2 Cao (s)
Pre-lab Study Questions 1. Calculate the enthalpy of reaction DHrxno for each of the following reactions using the t...
Pre-lab Study Questions 1. Calculate the enthalpy of reaction DHrxno for each of the following reactions using the tabulated standard enthalpy of formation DHfo. (Show calculation) a. H2O(g) ® H2O(l) b. CaCO3(s) ® CaO(s) + CO2(g) c. CH4(g) + 2 O2(g) ® CO2(g) + 2 H2O(g) 2. Consider the following reaction and the given standard enthalpy of formation DHfo. NH4NO3(s) ® NH4+(aq) + NO3-(aq) DHfo (kJ/mol) -365.6 -132.0 -205.0 a. Calculate the enthalpy of reaction DHrxno for the above reaction...
Calculate the change in Gibbs free energy at standard conditions (TSS) and the equilibrium constant for...
Calculate the change in Gibbs free energy at standard conditions (TSS) and the equilibrium constant for each of the following reactions. (a) CH4(g) + H2O(g) equilibrium reaction arrow CO(g) + 3 H2(g); ?H° = +205.9 kJ, ?S° = +214.7 J/K ?G° 141.9 Correct: Your answer is correct. kJ K (b) CaCO3(s) equilibrium reaction arrow CaO(s) + CO2(g); ?H° = +179.2 kJ, ?S° = +160.2 J/K ?G° 131.5 Correct: Your answer is correct. kJ K
Consider the following reaction and the corresponding thermodynamic data to answer the next two problems. CaCO3...
Consider the following reaction and the corresponding thermodynamic data to answer the next two problems. CaCO3 (s) ( CaO (s) + CO2 (g) (Ho rxn = 179.2 kJ/mol; (So rxn = 160.2 J/mol K What can be stated regarding the spontaneity of this chemical reaction? a) This reaction is spontaneous at all temperatures. b) This reaction is spontaneous above 894K and non-spontaneous below 894 K. c) This reaction is spontaneous below 894 K and non-spontaneous above 894 K. d) This...
44" What is the sign of ΔΗ (system) and AS (system) if a chemical reaction is...
44" What is the sign of ΔΗ (system) and AS (system) if a chemical reaction is spontaneous at all temperatures under stan conditions? a. AH (system) is negative, and ΔS (system) is positive. b. AH (system) is negative, and AS (system) is negative. C. AH (system) is positive, and AS (system) is positive. d. AH (system) is positive, and AS (system) is negative. e. none of these 45. For which of the following reactions will the entropy of the system...
Important industrial processes, such as converting iron ore to iron and then to steel, involve coupling...
Important industrial processes, such as converting iron ore to iron and then to steel, involve coupling a non-spontaneous reaction, such as reducing Fe2O3 (iron ore)to metallic iron, with a spontaneous process such as the oxidation of carbon in CO to CO2: Fe2O3 (s) + 3 CO (g) 2 Fe (s) + 3 CO2 (g) Reagent ΔHºf (kJ/mol) ΔSº(J/mol*K) Fe2O3 (s) -824.2 87.4 CO (g) -110.5 197.7 Fe(s) 0 27.3 CO2 (g) -393.5 213.8 Use the thermodynamic data provided above to determine...
Calcium oxide (Lime) is usually produced by heating and decomposing limestone (CaCO3), a cheap and abundant mineral, in a process: CaCO3 (s) CaO (s)+CO2 (g) a) Limestone at 25°C is fed to a continuous calcination reactor. The calcination is complete, and the products leave at 900 °C. Taking 1 metric ton (1000 kg) of limestone as a basis and elemental species [Ca(s), C(s), O2(g)] at 25°C as references for enthalpy calculations, prepare and fill in an inlet-outlet enthalpy table and...
Question 5 Calcium oxide (Lime) is usually produced by heating and decomposing limestone (CaCO3), cheap and abundant mineral, in a process: CaCO3 (s)CaO (s) CO2 (g) a) Limestone at 25°C is fed to a continuous calcination reactor. The calcination is complete, and the products leave at 900 °C. Taking 1 metric ton (1000 kg) of limestone as a basis and elemental species [Ca(s), C(s), O2(g)] at 25°C as references for enthalpy calculations prepare and fill in an inlet-outlet enthalpy table...
Consider the reaction CaCO3(s)Cao(s) + CO2(g The standard free energy change for this reaction is 130.4 kJ. The free energy change when 2.34 moles of CaCO (s) react at standard condition is kJ. What is the maximum amount of useful work that the reaction of 2.34 moles of CaCo,(s) is capable of producing in the surroundings under standard conditions? If no work can be done, enter none kJ
Consider the reaction CaCO3(s)Cao(s) + CO2(g The standard free energy change for...
14K 8.3 Heat Energy and Chemical Reactions 9. A synthetic fuel blend is tested by bomb calorimetry. It is found that an 80.10 Sample teens 28,096 kJ of heat. What is the fuel value of this blend, in k/? 10. Is the following reaction endothermic/exothermic? AH...= -1,269.8W 2 Ca (s) + O2 (g) → 2 Cao (s)
44" What is the sign of ΔΗ (system) and AS (system) if a chemical reaction is spontaneous at all temperatures under stan conditions? a. AH (system) is negative, and ΔS (system) is positive. b. AH (system) is negative, and AS (system) is negative. C. AH (system) is positive, and AS (system) is positive. d. AH (system) is positive, and AS (system) is negative. e. none of these 45. For which of the following reactions will the entropy of the system...
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