# Homework Help: Chemical equilibrium

1. Feb 8, 2007

### ultimateguy

1. The problem statement, all variables and given/known data
$$N_{2(g)}$$, 0.32M and $$H_{2(g)}$$, 0.66M are placed in a reaction vessel. The system reaches equilibrium when $$[H_{2(g)}]$$ = 0.30M. Calculate $$K_C$$

a) 10.7$$M^2$$
b) 4.00$$M^2$$
c) 2.67$$M^2$$
d) 1.67$$M^2$$

2. Relevant equations
Equilibrium constant formula

3. The attempt at a solution
This is just messing me up because the chemical equation isn't given. If I don't know the products, how do I get the equilibrium constant?

2. Feb 9, 2007

### f(x)

i s'pose this is the famous haber's process eqn.
N2+3H2---->2NH3

(and this is reversible)

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