Partial pressure of reagent in reaction

[Denver Dang]

Homework Statement

I have the reaction:

A(g) + 2B₂(g) -> AB₄(g)

The equilibrium constant K(T=298) = 10, and all gases are ideal.

So the two reagents A and B are mixed together at 1 bar and T = 298K, with the quantities 1 mol of A and 1 mol of B.

Now I have to find the partial pressure of AB₄ when there is equilibrium in the reaction.

Homework Equations

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The Attempt at a Solution

I've looked at Dalton's Law, but nothing I did seemed to make sense. So I'm kinda stuck.

I know the result should be: 0,268 bar.

So, could anyone give me a hint ?Thanks in advance.

Regards.

 

[Borek]

Have you tried ICE table approach?

This is not very difficult - you have to calculate amounts of substances at equilibrium. Write expression for K and think how concentrations of all substances change during the reaction - they are linked by stoichiometry.