Balance the following chemical equations and state whether they are exothermic or endothermic:
FeSO₄ --------→ Fe₂O₃ + SO₂ + SO₃
Medium
Solution
This is an endothermic reaction, as ferrous sulphate takes energy to decompose.
2FeSO₄(s) (Ferrous sulphate Heat) ----(heat)---→ Fe₂O₃(s) (Ferric oxide) + SO₂(g) + SO₃(g)