Question

If density of a gaseous mixture of dinitrogen tetroxide `(N_(2)O_(4))` and nitrogen dioxide `(NO)_(2)` is 2.5 gm/L at `127^(@)C` and 1 atm pressure. [R=0.08 atm lit/mole-k]
`K_(p)` for `N_(2)O_(4)(g)hArr2NO_(2)` is:
A. `0.90`
B. 0.09
C. `9.0`
D. 0.009

Answer 1

`N_(2)O_(4)(g)hArr2NO_(2)(g)`
0.74 atm 0.26atm
`k_(p)=((0.26)^(2))/(0.74)=0.091`
`k_(p)=0.09`