Estimate the Minimum Temperature at Which Magnetite Can Be Reduced $\rightarrow$

Estimate the minimum temperature at which magnetite can be reduced to iron by graphite.
Fe₃O₄(s) + 2C(s) $\rightarrow$ 2CO₂(g) + 3Fe(s)
$\Delta$ S_r ^$\omicron$ = +351.44 kJ.mol^-1
The standard molar enthalpies of formation of magnetite and CO₂(g)
Are -1118.4 and -393.51 kJ.mol^-1 ,Respectively.

A) 670 ^$\omicron$ C
B) Magnetite cannot be reduced by carbon at any temperature.
C) 787 ^$\omicron$ C
D) 943 ^$\omicron$ C
E) 1790 ^$\omicron$ C

Correct Answer:

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Access For Free