Question

the reaction of iron and oxygen to form iron oxide has an enthalpy of -1625 kJ. Is this reaction, 4Fe(s) + 3O2(g) → 2Fe2O3(s) ΔH = -1625 kJ, endothermic or exothermic?

Answer 1

ΔH = -ve means exothermic and ΔH = +ve means endothermic

Answer 2

so endothermic?

Answer 3

just see the answer and question dont get confused

Answer 4

whoops i see its exothermic because the answer to the equation is a negative.

Answer 5

then why did you say endothermic then :)

Answer 6

i understood what you were saying after i said that, silly me, thanks so much :)

Answer 7

sorry if u got hurted by that :) have a nice time enjoy