In which of the following reactions is the position of equilibrium not affected by an increase in pressure?
-
3Fe(s) + 4H2O(g) ⇌ Fe3O4(s) + 4H2(g)
- 2NO2(g) ⇌ N2O 4(g)
- 3H2(g) + N2(g) ⇌ 2NH3(g)
- 2SO2(g) + O2(g) ⇌ 2SO3(g)