Calculate the Energy Change Associated with the Chemical Reaction Provided

question 58

Multiple Choice

Calculate the energy change associated with the chemical reaction provided here. State whether it is endothermic or exothermic. [Bond energies (kJ/mol) : H-H: 436; N-H: 391; NΞN 945]
N₂ + 3 H₂  2 NH₃

• A) +93.0 kJ/mol, exothermic
• B) 1080 kJ/mol, endothermic
• C) -1080 kJ/mol, exothermic
• D) -93.0 kJ/mol, exothermic
• E) -93.0 kJ/mol, endothermic

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