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 kJ mol^(-1)`
B. `Fe_(2)O_(3)` can be reduced by CO spontaneously
C. `Fe_(2)O_(3)` cannot be reduced by CO spontaneously
D. The reduction of `Fe_(2)O_(3)` takes part in higher part of blast furnace

Answer

B

Explanation

`Delta G^(@)` for `2Fe_(2)O_(3)+600 rarr 4Fe+6CO_(2) + Delta_(r)G_(1)^(@) + Delta_(r)G_(2)^(@) = +1487 - 1543.2 = -56.2 kJ mol^(-1)`. The reduction occurs spontaneously in lower part of blast furnace.