For the Reaction 3Fe(s) + C(s) $\rarr$ Fe₃C(s) $\Delta$ H ^$\circ$ = 21 KJ/mol And

question 12

Multiple Choice

For the reaction 3Fe(s) + C(s) $\rarr$ Fe₃C(s) , $\Delta$ H ^$\circ$ = 21 kJ/mol and $\Delta$ S ^$\circ$ = 20.4 J/mol·K at 25 ^$\circ$ C. Estimate the minimum temperature above which the formation of cementite (Fe₃C) is favored.

• A) 1.0^\(\circ\)C
• B) 970^\(\circ\)C
• C) 700^\(\circ\)C
• D) 1000^\(\circ\)C
• E) 760^\(\circ\)C

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