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Tardigrade
Question
Chemistry
Carbon cannot reduce Fe2O3 to Fe at a temperature below 983 K because
Q. Carbon cannot reduce
F
e
2
O
3
to
F
e
at a temperature below
983
K
because
1714
187
KCET
KCET 2011
General Principles and Processes of Isolation of Elements
Report Error
A
free energy change for the formation of
CO
is more negative than that of
F
e
2
O
3
23%
B
CO
is thermodynamically more stable than
F
e
2
O
3
15%
C
carbon has higher affinity towards oxygen than iron
26%
D
iron has higher affinity towards oxygen than carbon
37%
Solution:
Below
983
K
, conversion of iron to ferric oxide is more favourable.
