Question

In the important industrial process for producing ammonia (the Haber Process), the overall reaction is: N2(g) + 3H2(g) → 2NH3(g) + 100.4 kJ A yield of NH3 of approximately 98% can be obtained at 200°C and 1,000 atmospheres of pressure. This reaction is:

exothermic
endothermic

Answer 1

Endothermic i think? Using Le Chât's principle

Answer 2

Exothermic

Step-by-step explanation:

From the perspective of thermodynamics, chemical reactions can be broadly

classified as endothermic and exothermic reactions.

Endothermic reactions are accompanied by the absorption of heat and have a negative value for the reaction enthalpy i.e. ΔH is negative. In contrast, exothermic reactions are accompanied by the release of heat and have a positive value for the reaction enthalpy i.e. ΔH is positive.

The given reaction is:

`N2(g) + 3H2(g)---- 2NH3(g) + 100.4 kJ`

Based on the above reaction, production of NH3 is accompanied by the release of 100.4 kJ of heat, hence this is an exothermic reaction.