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

question 19

Multiple Choice

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

• A)1.0°C
• B)970°C
• C)700°C
• D)1000°C
• E)760°C

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