Question: what is the enthalpy change for the process in which hydrazine is formed from its elements?
Answer: What Is The Enthalpy Change For The Process In Which Hydrazine Is Formed From Its Elements? N2(g) + 2 H2(g) → N2H4(l) Use The Following Reactions And Enthalpy Changes: N2H4(l) + O2(g) → N2(g) + 2 H2O(l), ΔH = -622.2 KJ H2(g) + 1/2 O2(g) → H2O(l), ΔH = -285.8 KJ.