Question

At equilibrium of the reaction, ` N_(2)O_(4) (g) hArr 2 NO_(2) (g)`,
the obsserved molecular weight of `N_(2)O_(4)` is 80 g `" mol "^(-1)` at 350 K. The percentage of dissociation of `N_(2)O_(4)` (g) at 350 K is
A. 0.1
B. 0.15
C. 0.2
D. 0.18

Answer 1

Correct Answer - B
For the given dissociation reaction ,
`alpha =(D-d)/d = (M_(t)-M_(o))/(M_(o))=(92 xx80)/80 xx 100 = 15%`