(a) The degree of dissociation is 0.4 at 400 K and 1.0 atm for the gaseous reaction PCl_ 5 ⇋ PCl_3 + Cl_2. As

### Question Asked by a Student from EXXAMM.com Team

Q 2686212177.     (a) The degree of dissociation is 0.4 at 400 K and 1.0 atm for
the gaseous reaction PCl_ 5 ⇋ PCl_3 + Cl_2. Assuming
ideal behaviour of all the gases, calculate the density of
equilibrium mixture at 400 K and 1.0 atm (relative atomic
mass of P = 31.0 and Cl = 35.5 ).

(b) Given, [Ag(NH_3)_2^+ ⇋ Ag^+ +2 NH_3

K_e=6.2 xx 10^(-8) and K_(sp) of AgCl

=1.8 xx 10^(-10) at 298 K

If ammonia is added to a water solution containing excess of AgCl(s) only. Calculate the concentration of the complex in
1.0 M aqueous ammonia.
JEE 1998

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