The Haber process for ammonia synthesis is exothermic:

Question

N2(g) + 3H2(g) <==> 2NH3(g) ∆H° = -92 kJ
If the equilibrium constant Kc for this process at 500.°C is 6.0 ξ 10-2, what is its value at 300.°C?

Answer 1

Use the van't Hoff equation.

Answer 2

5.6

Answer 3

8.9