The degree of dissociation `alpha` of the reaction"
`N_(2)O_(4(g))hArr 2NO_(2(g))`
can be related to `K_(p)` as:
A. `alpha=((K_(p))/(P))/(4+(K_(p))/(P))`
B. `alpha=(K_(p))/(4+K_(p))`
C. `alpha=[(K_(p)//P)/(4+K_p//P)]^(1//2)`
D. `alpha=[(K_(p))/(4+K_(p))]^(1//2)`
