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?

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?

chmvijay · Answer

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

anonymous · Answer

so endothermic?

chmvijay · Answer

just see the answer and question dont get confused

anonymous · Answer

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

chmvijay · Answer

then why did you say endothermic then :)

anonymous · Answer

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

chmvijay · Answer

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