Determine the enthalpy change in the following equation: 2 NH₃(g) → N₂(g) + 3 H₂(g) ΔH°f NH₃(g) = -46.11 kJ/mol

Name: Determine the enthalpy change in the following equation: 2 NH 3 (g) → N 2 (g) + 3 H 2 (g)&emsp;ΔH°f NH 3 (g) = -46.11 kJ/mol
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Question

Quizplus · Accepted Answer

The enthalpy change for the reaction is calculated by reversing the formation reaction of NH₃, which changes the sign of ΔH°f. Since 2 moles of NH₃ are decomposed, the enthalpy change is 2 × 46.11 kJ/mol = 92.22 kJ.

Determine the Enthalpy Change in the Following Equation: 2 NH3(g)

Determine the Enthalpy Change in the Following Equation: 2 NH₃(g)