If the concentration of OH^$$-$$ ions in the reaction
Fe(OH)_3(s) $$\rightleftharpoons$$ Fe³⁺_(aq) + 3OH^$$-$$_(aq)
is decreased by 1/4 times, then equilibrium concentration of Fe³⁺ will increase by

The values of for the reactions,

X $$\rightleftharpoons$$ Y + Z      . . . .(i)
A $$\rightleftharpoons$$ 2B       . . . .(ii)

are in the ratio 9 : 1. If degree of dissociation of X and A be equal, then total pressure at equilibrium (i) and (ii) are in the ratio

The value of equilibrium constant of the reaction
HI_(g) $$\rightleftharpoons$$ $${1 \over 2}$$H_2(g) + $${1 \over 2}$$I_2(g)
is 8.0. The The equilibrium constant of the reaction
H_2(g) + I_2(g) $$\rightleftharpoons$$ 2HI_(g) will be

The equilibrium constants of the following are

N₂ + 3H₂ $$\rightleftharpoons$$ 2NH₃;     K₁

N₂ + O₂ $$\rightleftharpoons$$ 2NO;     K₂

H₂ + $${1 \over 2}$$O₂ $$\rightleftharpoons$$ H₂O;     K₃

The equilibrium constant (K) of the reaction :

2NH₃ + $${5 \over 2}$$ O₂ $$\rightleftharpoons$$ 2NO + 3H₂O will be