1/ a/ When the iron rusts, the reaction below takes place. 4 Fe (s) + 3...

1/

a/

 When the iron rusts, the reaction below takes place.
4 Fe (s) + 3 O2 (g) → 2 Fe2O3 (s)                     ΔH = -1 643 kJ

What is the heat of formation (ΔHof) of Fe2O3? Is a calculation
necessary?

b/

The equation for the decomposition of mercury (II) oxide is as follows.
2 HgO (s) + 182 kJ →  2 Hg (l) + O2 (g)

Determine  ΔHof for HgO (s)?

c/

Calculate  ΔH in the following reactions.
 CO (g) + 1/2 O2 (g) → CO2 (g). 
CH4 (g) + 2 O2 (g)  → CO2 (g) + 2 H2O (g)
 CS2 (g) + 2 H2O (l)  → CO2 (g) + 2 H2S (g)

Expert Solution

queen_honey_blossom answered 2 years ago

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