[References] (a) Use Hess's Law to calculate the enthalpy change for recovering tungston from its oxide using the reaction: WO3 (s) + 3 H₂ (9)→ W (s) + 3 H₂O (g) from the following data: 2 W (s)+3 0₂ (g)-2 WO3 (s) AH = -1627.8 kJ "Note: Should have 1 digit after the decimal AH=-222.86 kJ "Note: Should have 2 digits after the decimal 2 H₂ (g) + O₂ (g) - 2 H₂O (g) Answer 479.61 kJ D (b) Calculate the enthalpy change for the reaction: from the following data: NO (g) + 03 (9) NO₂ (g) + O₂(g) AH = -384.4 kJ 03 (9) - 3/2 0₂ (9) ΔΗ = 464.1 kJ 0₂ (9) 20 (g) AH = 739.6 kJ Note: All AHs above for part b should have 1 digit after the decimal Answer: Submit Answer NO (g) +0 (g) NO₂ (g) KJ Try Another Version 1 item attempt remaining Previous Next

[References] (a) Use Hess's Law to calculate the enthalpy change for recovering tungston from its oxide using the reaction: WO3 (s) + 3 H₂ (9)→ W (s) + 3 H₂O (g) from the following data: 2 W (s)+3 0₂ (g)-2 WO3 (s) AH = -1627.8 kJ "Note: Should have 1 digit after the decimal AH=-222.86 kJ "Note: Should have 2 digits after the decimal 2 H₂ (g) + O₂ (g) - 2 H₂O (g) Answer 479.61 kJ D (b) Calculate the enthalpy change for the reaction: from the following data: NO (g) + 03 (9) NO₂ (g) + O₂(g) AH = -384.4 kJ 03 (9) - 3/2 0₂ (9) ΔΗ = 464.1 kJ 0₂ (9) 20 (g) AH = 739.6 kJ Note: All AHs above for part b should have 1 digit after the decimal Answer: Submit Answer NO (g) +0 (g) NO₂ (g) KJ Try Another Version 1 item attempt remaining Previous Next

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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