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1. Calculate the heat of combustion (kJ) of propane, C3H, using the listed standard enthalpy of reaction data: C3H₂(g) + 5 O₂(g) → 3 CO₂(g) + 4H₂O(g) 3 C(s) + 4 H₂(g) → C3H3(g) C(s) + O₂(g) → CO₂(g) ΔΗ = -103.8 kJ AH = -393.5 kJ H₂(g) + 1/2O₂(g) → H₂O(g) ΔΗ = -241.8 kJ

1. Calculate the heat of combustion (kJ) of propane, C3H, using the listed standard enthalpy of reaction data: C3H₂(g) + 5 O₂(g) → 3 CO₂(g) + 4H₂O(g) 3 C(s) + 4 H₂(g) → C3H3(g) C(s) + O₂(g) → CO₂(g) ΔΗ = -103.8 kJ AH = -393.5 kJ H₂(g) + 1/2O₂(g) → H₂O(g) ΔΗ = -241.8 kJ

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 5.79QE
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1. Calculate the heat of combustion (kJ) of propane, C3H, using the listed standard enthalpy of reaction data: C₂H3(g) + 5 O₂(g) → 3 CO₂(g) + 4H₂O(g) ΔΗ = -103.8 kJ 3 C(s) + 4H₂(g) →→ C3H8(g) C(s) + O₂(g) →→ CO₂(g) ΔΗ = -393.5 kJ H₂(g) + 1/2O₂(g) → H₂O(g) ΔΗ = -241.8 kJ 2. Given the following equations and AH values given below, determine the heat of reaction at 298 K for the reaction: 2 N₂(g) + 5 O₂(g) → 2 N₂O(g) 2 H₂(g) + O₂(g) → 2 H₂O(l) ΔΗ = -571.6 kJ N₂O(g) + H₂O(l) → 2 HNO3(1) ΔΗ = -73,7 kJ N₂(g) + 3 O₂(g) + H₂(g) → 2 HNO3(1) ΔΗ = -348.2 kJ 3. Given the following equations and AH values, determine the heat of reaction at 298 K for the reaction: C(s) + 2 H₂(g) → CH₂(g) C(s) + O₂(g) → CO₂(g) AH = -393.5 kJ H₂(g) + 1/2O₂(g) → H₂O(l) ΔΗ = -285.8 kJ COz(g) + 2 H,O(I) > CH,(g) + 2 Oz(g) ΔΗ = +890.3 kJ
Transcribed Image Text:1. Calculate the heat of combustion (kJ) of propane, C3H, using the listed standard enthalpy of reaction data: C₂H3(g) + 5 O₂(g) → 3 CO₂(g) + 4H₂O(g) ΔΗ = -103.8 kJ 3 C(s) + 4H₂(g) →→ C3H8(g) C(s) + O₂(g) →→ CO₂(g) ΔΗ = -393.5 kJ H₂(g) + 1/2O₂(g) → H₂O(g) ΔΗ = -241.8 kJ 2. Given the following equations and AH values given below, determine the heat of reaction at 298 K for the reaction: 2 N₂(g) + 5 O₂(g) → 2 N₂O(g) 2 H₂(g) + O₂(g) → 2 H₂O(l) ΔΗ = -571.6 kJ N₂O(g) + H₂O(l) → 2 HNO3(1) ΔΗ = -73,7 kJ N₂(g) + 3 O₂(g) + H₂(g) → 2 HNO3(1) ΔΗ = -348.2 kJ 3. Given the following equations and AH values, determine the heat of reaction at 298 K for the reaction: C(s) + 2 H₂(g) → CH₂(g) C(s) + O₂(g) → CO₂(g) AH = -393.5 kJ H₂(g) + 1/2O₂(g) → H₂O(l) ΔΗ = -285.8 kJ COz(g) + 2 H,O(I) > CH,(g) + 2 Oz(g) ΔΗ = +890.3 kJ
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2. Given the following equations and AH values given below, determine the heat of reaction at 298 K for the reaction: 2 N₂(g) + 5 O₂(g) → 2 N₂O(g) ΔΗ = -571.6 kJ 2 H₂(g) + O₂(g) → 2 H₂O(l) N₂O(g) + H₂O(1)→ 2 HNO3(1) ΔΗ = -73.7 kJ ΔΗ = -348.2 kJ N₂(g) + 3 O₂(g) + H₂(g) → 2 HNO3(1) 3. Given the following equations and AH values, determine the heat of reaction at 298 K for the reaction: C(s) + 2 H₂(g) → CH₂(g) C(s) + O₂(g) → CO₂(g) ΔΗ = -393.5 kJ H₂(g) + 1/2O₂(g) → H₂O(l) ΔΗ = -285.8 kJ COz(g) + 2 H,O(l) > CH,(g) + 2 Oz(g) AH = +890.3 kJ
Transcribed Image Text:2. Given the following equations and AH values given below, determine the heat of reaction at 298 K for the reaction: 2 N₂(g) + 5 O₂(g) → 2 N₂O(g) ΔΗ = -571.6 kJ 2 H₂(g) + O₂(g) → 2 H₂O(l) N₂O(g) + H₂O(1)→ 2 HNO3(1) ΔΗ = -73.7 kJ ΔΗ = -348.2 kJ N₂(g) + 3 O₂(g) + H₂(g) → 2 HNO3(1) 3. Given the following equations and AH values, determine the heat of reaction at 298 K for the reaction: C(s) + 2 H₂(g) → CH₂(g) C(s) + O₂(g) → CO₂(g) ΔΗ = -393.5 kJ H₂(g) + 1/2O₂(g) → H₂O(l) ΔΗ = -285.8 kJ COz(g) + 2 H,O(l) > CH,(g) + 2 Oz(g) AH = +890.3 kJ
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