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The heat of formation of Fe(2)O(3) "is" ...

The heat of formation of `Fe_(2)O_(3) "is" -821.32 kJ "mole"^(-1)` at 298 K and 1 atm and that of `Al_(2)O_(3)` is -1675.60 kJ ` "mole"^(-1)` under the same condition. Calculate the heat of reaction of reduction of 1 "mole" of `Fe_(2)O_(3)` with metallic aluminium.

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The correct Answer is:
(-854.28 kJ)
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