Two moles of NH3 ,when put in to a previously evacuated vessel(1 Litre), partially dissociate in to N 2 and H2 If at equlibrium one mole of NH3 is present, the equilibrium constant is,
(a) 3/4 mol2 Litre-2
(b) 27/64 mole2 Litre-2
(c) 27/32 mole2 Litre-2
(d) 27/16 mole2 Litre-2
