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#2 = 3.18*10^6 KJ but I need help with #3

#2 = 3.18*10^6 KJ but I need help with #3

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter12: Thermodynamic Processes And Thermochemistry
Section: Chapter Questions
Problem 44P
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#2 = 3.18*10^6 KJ but I need help with #3
CHE180 - General College Chemistry II Assignment 8-2 - Enthalpies of Formation Instructions: This exercise is due at class time on Monday, February 14, 2022. 1. Lime (CaO) is made by heating limestone in a kiln at 900°C. Using enthalpies of formation, TABLE 8.3, p. 203, Masterton/Hurley, calculate AH for the reaction: I CACO, (s) --->(CaO (s) +1CO2 (g) - GI5.ley-373.5 aynd -1206.9 Ky 3. rodudt - reschents : (1(-635.) +1(-3955))-(1(-12069) : (- 1028.6) -(-1264.9) AH = 178.3 K/mal 2. Estimate the quantity of energy (in kJ) needed to manufacture 1.00 metric tons of lime via the reaction in (1). 3. What quantity of coal must be burned to supply the energy in (2), assuming that the only combustion reaction is: C(s) + 02 ---> CO2 (g)? 4. Given the reaction below, calculate AHf for the sulfite (SO,²') ion. SO,? (aq)+ 2H (aq) + 2NO3 (aq) ----> SO,2 (aq)+ 2NO2 (g)+ HaO (1) AH=-88.0 kJ
Transcribed Image Text:CHE180 - General College Chemistry II Assignment 8-2 - Enthalpies of Formation Instructions: This exercise is due at class time on Monday, February 14, 2022. 1. Lime (CaO) is made by heating limestone in a kiln at 900°C. Using enthalpies of formation, TABLE 8.3, p. 203, Masterton/Hurley, calculate AH for the reaction: I CACO, (s) --->(CaO (s) +1CO2 (g) - GI5.ley-373.5 aynd -1206.9 Ky 3. rodudt - reschents : (1(-635.) +1(-3955))-(1(-12069) : (- 1028.6) -(-1264.9) AH = 178.3 K/mal 2. Estimate the quantity of energy (in kJ) needed to manufacture 1.00 metric tons of lime via the reaction in (1). 3. What quantity of coal must be burned to supply the energy in (2), assuming that the only combustion reaction is: C(s) + 02 ---> CO2 (g)? 4. Given the reaction below, calculate AHf for the sulfite (SO,²') ion. SO,? (aq)+ 2H (aq) + 2NO3 (aq) ----> SO,2 (aq)+ 2NO2 (g)+ HaO (1) AH=-88.0 kJ
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