Consider the following equilibrium in a closed container:
`N_(2)O_(4)(g)hArr2NO_(2)(g)`
At a fixed temperature, the volume of the reaction container is halved. For this change which of the following statements holds true regarding the equilibrium constant `(K_(p))` and degree of dissociation `(alpha)`?
A. neigher `K_(p)` no `alpha` changes
B. Both `K_(p)` and `alpha` change
C. `K_(p)` changes but `alpha` does not change
D. `K_(p)` does not chamge but `alpha` changes