The vapour density of undecomposed N_(2)O_(4) is 46. When heated, vapour density decreases to 24.5 due to is dissociation to NO_(2). The % dissociation of N_(2)O_(4) at the final temperature is

The vapour density of undecomposed N_(2)O_(4) is 46. When heated, vapo

1.	The vapour density of undecomposed N_(2)O_(4) is 46. When heated, vapour density decreases to 24.5 due to is dissociation to NO_(2). The % dissociation of N_(2)O_(4) at the final temperature is
Answer» 80 60 40 70 Solution :`{:(N_(2)O_(4),hArr,2NO_(2)),(1,,0),(1-alpha,,2alpha):}` `:. (VD_("innitial"))/(VD_("FINAL")) = (n_("final"))/(n_("innitial"))` `(46)/(25.4) = (25.4)/(46) = (1+alpha)/(1)` `1.8 = 1+alpha` `implies alpha = 0.8`or`80%`