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4. Use the following reactions and AH° values given below to determine the heat of reaction for CH. (g) + NH) (g) HCN (g) + 3 H2 (g) N2 (g) +3 H2 (g)→ 2 NH3 (g) C (s) +2 H2 (8) –CH (g) H2 (g) + 2 C (s) + N2 (g) 2 HCN (g) AH =- 92.0 kJ/mol AH -- 79.4 kJ/mol AH - 268.5 kJ/mol.

4. Use the following reactions and AH° values given below to determine the heat of reaction for CH. (g) + NH) (g) HCN (g) + 3 H2 (g) N2 (g) +3 H2 (g)→ 2 NH3 (g) C (s) +2 H2 (8) –CH (g) H2 (g) + 2 C (s) + N2 (g) 2 HCN (g) AH =- 92.0 kJ/mol AH -- 79.4 kJ/mol AH - 268.5 kJ/mol.

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter4: Energy And Chemical Reactions
Section: Chapter Questions
Problem 97QRT
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4. Use the following reactions and AH° values given below to determine the heat of reaction for CH. (g) + NH3 (g) HCN (g) + 3 H2 (g) AH =- 92.0 kJ/mol AH =- 79.4 kJ/mol AH = 268.5 kJ/mol 2 NH3 (g) N2 (g) + 3 H2 (g) C (s) +2 H2 (g) →CHa (g) H2 (g) +2 C (s) + N2 (g) – 2 HCN (g)
Transcribed Image Text:4. Use the following reactions and AH° values given below to determine the heat of reaction for CH. (g) + NH3 (g) HCN (g) + 3 H2 (g) AH =- 92.0 kJ/mol AH =- 79.4 kJ/mol AH = 268.5 kJ/mol 2 NH3 (g) N2 (g) + 3 H2 (g) C (s) +2 H2 (g) →CHa (g) H2 (g) +2 C (s) + N2 (g) – 2 HCN (g)
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