Influence of pressure, temperature, concentration and addition of inert gas on a reversible chemical reaction in equilibrium can be explained by formulating the expression for equilibrium constant `K_(c)` or `K_(p)` for the equilibrium. On the other hand Le Chatelier principle can be theoretically used to explain the effect of `P`, `T` or concentration on the physical or chemical equilibrium both.
For a reversible reaction:
`2NO_((g))+O_(2(g))hArr2NO_(2(g))`
the rate expression is given as `((dx)/(dt))_("net")=2.6xx10^(3)[NO]^(2)[O_(2)]-4.1[NO_(2)]^(2)`. The equilibrium constant of reaction is:

Options

A. `1.58xx10^(-3)`
B. `634.15`
C. `10.66xx10^(3)`
D. `1.06xx10^(3)`

Explanation

`K_(f)=2.6xx10^(3)`, `K_(b)=4.1`,
`:. K_(c)=(K_(f))/(K_(b))=(2.6xx10^(3))/(4.1)=634.15`