QUESTION 14 Use the AH°f and AH°rxn information provided to calculate AH°f for SO3(g): 2 SO2(g) + O2(g) → 2 SO3(g) AH rxn = -198 kJ AHᵒf (kJ/mol) -297 SO2(g) -396 kJ/mol -578 kJ/mol -495 kJ/mol -792 kJ/mol -248 kJ/mol

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Chapter1: Chemical Foundations
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-190. kJ/mol
-63.8 kJ/mol
-146 kJ/mol
24 kJ/mol
101 kJ/mol
AH°f (kJ/mol)
QUESTION 14
Use the AH°f and AH°rxn information provided to calculate AH°f for SO3(g):
2 SO2(g) + O2(g) → 2 SO3(9)
AH°rxn
SO₂(g) -297
● -396 kJ/mol
-578 kJ/mol
-495 kJ/mol
-792 kJ/mol
-248 kJ/mol
= -198 kJ
QUESTION 15
Using the following thermochemical equation, determine the amount of heat produced per kg of CO2 formed dur
combustion of benzene (C6H6).
2 C6H6() + 15 O₂(g) → 12 CO2(g) + 6 H₂O(g)
O 1.19 x 104 kJ/kg CO2
2.30 × 104 kJ/kg CO₂
8.40 × 105 kJ/kg CO2
4.34 x 104 kJ/kg CO2
1.43 x 105 kJ/kg CO2
AH°rxn = -6278 kJ
Transcribed Image Text:-190. kJ/mol -63.8 kJ/mol -146 kJ/mol 24 kJ/mol 101 kJ/mol AH°f (kJ/mol) QUESTION 14 Use the AH°f and AH°rxn information provided to calculate AH°f for SO3(g): 2 SO2(g) + O2(g) → 2 SO3(9) AH°rxn SO₂(g) -297 ● -396 kJ/mol -578 kJ/mol -495 kJ/mol -792 kJ/mol -248 kJ/mol = -198 kJ QUESTION 15 Using the following thermochemical equation, determine the amount of heat produced per kg of CO2 formed dur combustion of benzene (C6H6). 2 C6H6() + 15 O₂(g) → 12 CO2(g) + 6 H₂O(g) O 1.19 x 104 kJ/kg CO2 2.30 × 104 kJ/kg CO₂ 8.40 × 105 kJ/kg CO2 4.34 x 104 kJ/kg CO2 1.43 x 105 kJ/kg CO2 AH°rxn = -6278 kJ
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