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Chemistry
Chemistry
Problem
Calculate
Δ
H
∘
\Delta H^\circ
Δ
H
∘
for
2
Al
+
Fe
2
O
3
→
2
Fe
+
Al
2
O
3
2\text{Al} + \text{Fe}_2\text{O}_3 \rightarrow 2\text{Fe} + \text{Al}_2\text{O}_3
2
Al
+
Fe
2
O
3
→
2
Fe
+
Al
2
O
3
given that standard heat enthalpy of
Fe
2
O
3
\text{Fe}_2\text{O}_3
Fe
2
O
3
and
Al
2
O
3
\text{Al}_2\text{O}_3
Al
2
O
3
are
−
196.5
-196.5
−
196.5
and
−
399.1
kcal
-399.1 \text{ kcal}
−
399.1
kcal
.
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