Question

Consider the oxidation of iron. 4Fe(s) + 3O2(g) → 2Fe2O3(s) The ΔH° for the above reaction is –1648 kJ/mol and the change in entropy for the reaction is –549.4 JK–1 mol–1. Then the change in entropy of the universe at 298 K is (in JK–1 mol–1)

Answer 1

Answer:

And of course this doesn't mean that during rusting, the entropy of the universe decreases: although the entropy of the iron plus oxygen decreases, the entropy of the surroundings increases by even more. Nevertheless, it is clear that rusting itself involves a decrease in entropy, not an increase.

Answer 2

hope this helps you.......