IB
IBO
Chemistry
May 2023
QP-202305-Chemistry-P1（TZ2）-HL · Question 14
Question (excerpt):
14. The enthalpy of formation of ammonia gas is -46 kJ mol-1. N2 (g) + 3H2 (g) → 2NH3 (g) What is the energy released, in kJ, in the reaction? A. 23 B. 46 C. 69 D. 92
14. The enthalpy of formation of ammonia gas is -46 kJ mol-1. N2 (g) + 3H2 (g) → 2NH3 (g) What is the energy released, in kJ, in the reaction? A. 23 B. 46 C. 69 D. 92
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