Equilibrium - Result Question 5
####6. Given the reaction between 2 gases represented by $A_2$ and $B_2$ to give the compound $AB(g)$.
$A_2(g)+B_2(g) \rightarrow 2 AB(g)$.
At equilibrium, the concentration
of $A_2=3.0 \times 10^{-3} M$
of $B_2=4.2 \times 10^{-3} M$
of $AB=2.8 \times 10^{-3} M$
If the reaction takes place in a sealed vessel at $527^{\circ} C$, then the value of $K_c$ will be : [2012 M]
(a) 2.0
(b) 1.9
(c) 0.62
(d) 4.5