consider the reaction. 2 Fe2O3 ----> 4 Fe + 3 O2 ?H rxn= +824.2 kJ The...

Question

Question

consider the reaction.

2 Fe2O3 ----> 4 Fe + 3 O2 ?H rxn= +824.2 kJ

The composition kf 42.0 g of Fe2O3 results in

a) the absorption of 17300 kJ of heat

b) the release of 17300 kJ of heat

c) the release of 108 kJ of hear

d) the absorption of 108 kJ of heat

e) the release of 217 kJ of heat

f) the abosrption of 217 kJ of heat

Answer 1

Answer #1

Molar mass of Fe og = 159.69 9/ mad Let be the amount of heat released by 429 of Floos 2x 159.697 of Feroz gives + 824.2kJ.

Answer 2

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