Ammonium chloride dissociates as,
`NH_(4)Cl(g) hArr NH_(3)(g)+HCl(g)`
The vapour density becomes half the initial value when degree of dissociation is `0.5`.

NH_4 Cl hArr NH_3 + HCl reaction is called

The vapour density of fully dissociated NH_(4)Cl would be

Solid Ammonium carbamate dissociates as: NH_(2)COONH_(4)(s)hArr2NH_(3)(g)+CO_(2)(g). In a closed vessel, solid ammonium carbonate is in equilibrium with its dissociation products. At equilibrium, ammonia is added such that the partial pressure of NH_(3) at new equilibrium now equals the original total pressure. Calculate the ratio of total pressure at new equilibrium to that of original total pressure. Also find the partial pressure of ammonia gas added.

Phosphorous pentachloride when heated in a sealed tube at 700 K it undergoes decomposition as PCl_(5)(g) hArr PCl_(3)(g)+Cl_(2)(g), K_(p)=38 atm Vapour density of the mixture is 74.25 . Percentage dissociation of PCl_(5) may be given as

Phosphorus pentachloride dissociates as follows in a closed reaction vessel. PCl_5(g) hArr PCl_3(g) +Cl_2(g) If total pressure at equilibrium of the reactions mixture is P and degree of dissociation of PCl_5 is x, the partial pressure of PCl_3 will be: