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What will be the maximum amount of heat ...

What will be the maximum amount of heat realeased when 321 g of a mixuture of `fe_(2)O_(3)` and Al is subjected to sparkling in absence of air?
`DeltaH_(f)(Fe_(2)O_(3)=-199kJ//`mole
`DeltaH_(f)(Al_(2)O_(3)=-399kJ//`mole

A

200 kJ

B

300 kJ

C

400 kJ

D

100 kJ

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The correct Answer is:
B
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