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Suppose a particular mechanism has the following equilibria: Ni(CO)4(g) ⇌ Ni(s) + 4 CO(g)               K1 = 8.77             ΔH1 = 190 kJ MnO(s)...

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Chemistry

Suppose a particular mechanism has the following equilibria:

Ni(CO)4(g) ⇌Ni(s) + 4CO(g)              K1 =8.77            ΔH1 = 190 kJ

MnO(s) + CO(g) ⇌Mn(s) +CO2(g)       K2 =490             ΔH2 = 349 kJ

Mn(s) +H2O(g) ⇌ MnO(s) +H2(g)        K3 =0.0149         ΔH3 = -346 kJ

Determine the values of the equilibrium constant and enthalpychange for the net equation:

Ni(CO)4(g) + 4 H2O(g) ⇌Ni(s) + 4 CO2(g) +4H2(g)       Kc = ?     ΔH = ?

(You’ll want to review the rules for manipulating thestoichiometry of an equilibrium reaction and its equilibriumconstant in section 14.3 of the textbook. It is different thanusing Hess’s Law to find the net enthalpy change.)

3 species do not appear in the net question. Which are they?Classify each as an intermediate or a catalyst. How do you know thedifference?

Answer & Explanation Solved by verified expert
4.5 Ratings (616 Votes)
NiCO4g Nis 4 COg K1 877 H1 190 kJ MnOs COg Mns CO2g K2 490 H2 349 kJ Mns H2Og MnOs H2g K3 00149 H3 346 kJ To calculate Kc for    See Answer
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