Question

The standard state Gibbs-function change for the dissociation of diatomic fluorine (F2) into
its monatomic species at 1200 K is 12,550 kJ/kmol.
(a) Compute the percent dissociation of pure F2 at this temperature and (i) 1 atm, and (ii) 0.2 atm
(b) If the initial reactants include I kmol ofF2 and 2 kmol ofN2 (assume to be inert) at 1200
K, determine the kmol of F2 present at (i) 1 atm, and (ii) 0.2 atm.

Answer 1

F2 = 2F Total mole Starting 1 0 = (2+2) 1-4 a. (20) (274) PF (2+2)7 (traje op (6-d) e P. x is small) o i we know, a=-RT enke Inkpe - 12550 . 8-314 X 1200 or enup = og kp= -1.25 0.286 & for p = 1 atm. 0-286 = 40. or a = 0.378. por p = 0.2 atm a = » & 0.286 20.845, 4x0.2