4. Calculate AH°25°C for the reaction: 4 NH3 + 5 O2 → 4NO + 6 H2O Equation (1): 2 NH3 N2 + 3 H2 AH°25°C = 92 kJ Equation (2): 2 H2O → 2 H2 + O2 AH°25°C = 572 kJ Equation (3): N2 + O2 → 2 NO AH°25°C = -180 kJ

4. Calculate AH°25°C for the reaction: 4 NH3 + 5 O2 → 4NO + 6 H2O Equation (1): 2 NH3 N2 + 3 H2 AH°25°C = 92 kJ Equation (2): 2 H2O → 2 H2 + O2 AH°25°C = 572 kJ Equation (3): N2 + O2 → 2 NO AH°25°C = -180 kJ

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter17: Spontaneity, Entropy, And Free Energy

Section: Chapter Questions

Problem 34E: Calculate Ssurr for the following reactions at 25C and 1 atm. a. C3H8(g) + 5O2(g) 3CO2(g) + 4H2O(l)...

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Question

4. Calculate AH°25°C for the reaction: 4 NH3 + 5 O2 → 4NO + 6 H2O
Equation (1): 2 NH3 → N2 + 3 H2
AH°25°C = 92 kJ
Equation (2): 2 H2O → 2 H2 + O2
Equation (3): N2 + O2 → 2 NO
AH°25°C = 572 kJ
AH°25°C = -180 kJ

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