0.0755 g of selenium vapours occupying a volume of 114.2 mL at 700^(@)C and 185 mm of Hg. The vapours are in equilibrium as: Se_(6(g))hArr3Se_(2(g)) Calculate: (i) Degree of dissociation of Se, (ii) K_(p), (iii) K_(c). Atomic weight of Se is 79.

0.0755 g of selenium vapours occupying a volume of 114.2 mL at 700^(@)

1.	0.0755 g of selenium vapours occupying a volume of 114.2 mL at 700^(@)C and 185 mm of Hg. The vapours are in equilibrium as: Se_(6(g))hArr3Se_(2(g)) Calculate: (i) Degree of dissociation of Se, (ii) K_(p), (iii) K_(c). Atomic weight of Se is 79.
Answer» Solution :(`i`) `59%`, (`II`) `0.168 ATM`, (`III`) `2.633xx10^(-5) mol^(2) litre^(-2)` ,