When a 3125 G Sample of Ammonium Nitrate (NH ₄NO₃ , Molar

question 37

Multiple Choice

When a 3.125 g sample of ammonium nitrate (NH ₄NO₃ , molar mass = 80.05 g/mol) decomposes in a bomb calorimeter with a heat capacity oF₄.116 kJ/ C, the temperature rises from 24.15 C to 25.35 C. What is D E for the decomposition of ammonium nitrate?
NH ₄NO₃(s) N₂O (g) + 2 H₂ O ( )

• A) - 126 kJ
• B) - 69.5 kJ
• C) - 4.94 kJ
• D) - 1.58 kJ
• E) none of these

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