In combustion studies of H 2 as an alternative fuel, you find evidence that the

Question

In combustion studies of H2 as an alternative fuel, you find evidence that the hydroxyl radical (HO) is formed in flames by the following reaction.

Use the following data to calculate Kc for this reaction.

In combustion studies of H2 as an alternative fuel, you find evidence that the hydroxyl radical (HO) is formed in flames by the following reaction. H(g) + 1/2 O2(g) x 10^-3 Right left arrow H(g) Kc = 1.6 right left arrow HO(g) Kc = 0.58 1/2 H2(g) right left arrow HO(g) Use the following data to calculate Kc for this reaction. 1/2 H2(g) + 1/2 O2(g)

Explanation / Answer

H(g) + 1/2O2(g) --> OH(g)

Kc = [H(g)][O2(g)]^1/2/[OH]

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1/2H2(g) + 1/2O2(g) ---> HO(g)

Kc1 = 0.58 = [OH(g)]/([H2(g)]^1/2[O2(g)]^1/2

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1/2 H2(g) ---> H(g)

Kc2 = 1.6 X 10-3 = [H(g)]/[H2(g)]^1/2
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K= Kc1/Kc2

K=0.58(1/1.6E-3)

K=362.5

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