Problem: At a certain temperature, Kp for the reaction,Br2(g) <=> 2 Br(g) is 3,498.Calculate the value of Kp for the reaction,1/2 Br2(g) ) <=> Br(g)

FREE Expert Solution

We’re being asked to determine the equilibrium constant at 458 ˚C for this reaction:


1/2 Br2(g) Br(g)


Given another reaction with it's Kp

Br2(g) 2 Br(g) is 3,498


Recall that the equilibrium constant is the ratio of the products and reactants

We use Kp when dealing with pressure and Kc when dealing with concentration:


Kp=PproductsPreactants     Kc=[products][reactants]


Note that solid and liquid compounds are ignored in the equilibrium expression.


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Problem Details

At a certain temperature, Kp for the reaction,

Br2(g) <=> 2 Br(g) is 3,498.

Calculate the value of Kp for the reaction,

1/2 Br2(g) ) <=> Br(g)