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Smelting of iron ore takes place through...

Smelting of iron ore takes place through this reaction
`2Fe_(2)O_(3)(s)+3C(s)rarr4Fe(s)+3CO_(2)(g)`
`DeltaH_(f)^(2)` of `Fe_(2)O_(3)` and `CO_(2)` are `-8242KJmol^(-1)` and `-393.7KJmol^(-1)`
The reaction is

A

Endothermic

B

Exothermic

C

`DeltaH=0`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A
`DeltaH(DeltaH_(f)^(0))_("products")-(DeltaH_(f)^(0))_("Reactants")`
`=3xx(-393.7)-2xx(-824.2)`
`=476.3KJ//mol`
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