Question

2 Fe$_2$O$_3$ $\longrightarrow$ 4 Fe + 3 O$_2$ $\Delta H_{rxn}$ = +824.2 kJ The decomposition of 62.0 g of Fe$_2$O$_3$ results in the absorption of 3.20 $\times$ 10$^2$ kJ of heat. the release of 25600 kJ of heat. the release of 1.60 $\times$ 10$^2$ kJ of heat. the absorption of 25600 kJ of heat. the release of 3.20 $\times$ 10$^2$ kJ of heat. the absorption of 1.60 $\times$ 10$^2$ kJ of heat.

          2 Fe$_2$O$_3$ \(\longrightarrow\) 4 Fe + 3 O$_2$
$\Delta H_{rxn}$ = +824.2 kJ
The decomposition of 62.0 g of Fe$_2$O$_3$ results in
the absorption of 3.20 \(\times\) 10$^2$ kJ of heat.
the release of 25600 kJ of heat.
the release of 1.60 \(\times\) 10$^2$ kJ of heat.
the absorption of 25600 kJ of heat.
the release of 3.20 \(\times\) 10$^2$ kJ of heat.
the absorption of 1.60 \(\times\) 10$^2$ kJ of heat.

2 Fe2O3 ⟶ 4 Fe + 3 O2
Δ Hrxn = +824.2 kJ
The decomposition of 62.0 g of Fe2O3 results in
the absorption of 3.20 × 10^2 kJ of heat.
the release of 25600 kJ of heat.
the release of 1.60 × 10^2 kJ of heat.
the absorption of 25600 kJ of heat.
the release of 3.20 × 10^2 kJ of heat.
the absorption of 1.60 × 10^2 kJ of heat.

Added by Kevin B.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Madhur L

04/10/2023

Step 1

Fe: 55.85 g/mol O: 16.00 g/mol Molar mass of Fe2O3 = 2(Fe) + 3(O) = 2(55.85) + 3(16.00) = 159.70 g/mol Show more…

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2Fe2O3 -> 4Fe + 3O2, ΔHrxn° = +824.2 kJ The decomposition of 62.0 g of Fe2O3 results in the absorption of 3.20 × 102 kJ of heat. the release of 25600 kJ of heat. the release of 1.60 × 102 kJ of heat. the absorption of 25600 kJ of heat. the release of 3.20 × 102 kJ of heat. the absorption of 1.60 × 102 kJ of heat.