Given, `2Fe_2O_(3(s)) to 4Fe_((s)) + 3 O_(2(g)), Delta_r G_1^@ = +1487kJmol^(-1)`
`6CO_((g)) +3O_(2(g)) to 6CO_(2(g)), Delta_r G_2^@ = 1543.2kJmol^(-1)` Select the correct statements:

Options

A. `Delta_(r)G^(@)` for reduction of iron oxide by `CO` is `-56.2 k J m^(-1)`
B. `Fe_(2)O_(3)` cannot be reduced by `CO` spontaneously
C. `Fe_(2)O_(3)` can be reduced by `CO` spontaneously
D. The reduction of `Fe_(2)O_(3)` takes part in higher part of blast furnace

Answer

A, B, D

Explanation

`Delta_(r)G^(@) for 2Fe_(2)O_(3)+6COto4Fe+6CO_(2)`
`Delta_(r)G^(@)=Delta_(r)G_(1)^(@)+Delta_(r)G_(2)^(@)=+1487-1543.2=-56.2 kJ mol^(-1)`