Use the molar ∆Hf° under formulas to calculate ∆H°rxn for the equations as balanced: 1. 4Al2O3 + 3CH4 → 8Al + 3CO2 + 6H2O ∆H°rxn = ______ kJ exo ? endo_thermic ∆H°f = –1676 –75 ___ –394 –242 kJ/mol 2. MnO2(s) + 2CO(g) → Mn(s) + 2CO2(g) ∆H°rxn = ______ kJ ∆H°f = –520 –111 ___ –394 kJ/mol exo ? endo_thermic 3. CF4(g) + 2H2O(g) → CO2(s) + 4HF(g) ∆H°rxn = ______ kJ ∆H°f = –934 –242 –394 –273 kJ/mol exo ? endo_thermic
Use the molar ∆Hf° under formulas to calculate ∆H°rxn for the equations as balanced: 1. 4Al2O3 + 3CH4 → 8Al + 3CO2 + 6H2O ∆H°rxn = ______ kJ exo ? endo_thermic ∆H°f = –1676 –75 ___ –394 –242 kJ/mol 2. MnO2(s) + 2CO(g) → Mn(s) + 2CO2(g) ∆H°rxn = ______ kJ ∆H°f = –520 –111 ___ –394 kJ/mol exo ? endo_thermic 3. CF4(g) + 2H2O(g) → CO2(s) + 4HF(g) ∆H°rxn = ______ kJ ∆H°f = –934 –242 –394 –273 kJ/mol exo ? endo_thermic
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter18: Thermodynamics And Equilibrium
Section: Chapter Questions
Problem 18.20QP: Given the following information at 25C, calculate G at 25C for the reaction 2A(g)+B(g)3C(g)...
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Use the molar ∆Hf° under formulas to calculate ∆H°rxn for the equations as balanced:
1. 4Al2O3 + 3CH4 → 8Al + 3CO2 + 6H2O ∆H°rxn = ______ kJ
exo ? endo_thermic
∆H°f = –1676 –75 ___ –394 –242 kJ/mol
2. MnO2(s) + 2CO(g) → Mn(s) + 2CO2(g) ∆H°rxn = ______ kJ
∆H°f = –520 –111 ___ –394 kJ/mol
exo ? endo_thermic
3. CF4(g) + 2H2O(g) → CO2(s) + 4HF(g) ∆H°rxn = ______ kJ
∆H°f = –934 –242 –394 –273 kJ/mol
exo ? endo_thermic
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