Given, Select the correct statement :

CHEMISTRY · Single correct · A Level · Chemistry · Thermodynamics · Thermodynamics

Problem

Given,

2\text{Fe}_2\text{O}_{3(s)} \longrightarrow 4\text{Fe}_{(s)} + 3\text{O}_{2(g)}; \Delta_r G_1^\circ = +1487 \text{ kJ mol}^{-1}

6\text{CO}_{(g)} + 3\text{O}_{2(g)} \longrightarrow 6\text{CO}_{2(g)}; \Delta_r G_2^\circ = -1543.2 \text{ kJ mol}^{-1}

Select the correct statement : (1)

\Delta_r G^\circ

for reduction of iron oxide by CO is

+56.2 \text{ kJ mol}^{-1}

(2)

\text{Fe}_2\text{O}_3

can be reduced by CO spontaneously (3)

\text{Fe}_2\text{O}_3

cannot be reduced by CO spontaneously (4) The reduction of

\text{Fe}_2\text{O}_3

takes part in higher part of blast furnace.