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We could also write this reaction three other ways, listed below. The equilibriu

ID: 500957 • Letter: W

Question


We could also write this reaction three other ways, listed below. The equilibrium constants for all of the reactions are related. Write the equilibrium constant for each new reaction in terms of K, the equilibrium constant for the reaction above.

Bromine is one of the few elements that is a liquid at room temperature. It vaporizes easily and has a beautiful red color in both the liquid and gaseous states.

Bromine reacts readily with hydrogen gas to make hydrogen bromide.
One way to represent this equilibrium is:
1/2 H2(g) + 1/2 Br2(g)HBr(g)

Explanation / Answer

For gases equilibrium constant is measured in terms of partial pressures.

K1=(PH2 x PBr2)/P2HBr

K2=P2HBr/(PH2 x PBr2)

K3=(PH2 x PBr2)1/2/PHBr

Equilibrium constant for the above reaction is

K=(PH2 x PBr2)1/2/PHBr

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