At 850 K, the value of the equilibrium constant Kp for the ammonia synthesis reaction N2(g) + H2(g) <--> N2H2(g) is 0.1690. If a vessel contains an initial reaction mixture in which [N2]=0.0150 M, [H2]=0.0200 M, and [N2H2]=0.000250 M, what will the [N2H2] be when equilibrium is reached?

Answer 1

You didn't balance th equation and ammonia is NH3. N2H4 is hydrazine.
Did you intend to write concns (and not partial pressures) for the reactants and products.

Answer 2

I think so. That is what the question said.

Answer 3

What about the product? Is that N2H4 or NH3.

Answer 4

the equation was given to me as is, along with the initial concentrations