The equilibrium, NH4HS(.s.)leftharpoons NH3(.g.)+H2S(.g.) , is followed to set-up at 127° C in a closed vessel. The total pressure at equilibrium was 20 atm. The KC for the reaction is

Question

The equilibrium, NH4HS(.s.)leftharpoons NH3(.g.)+H2S(.g.) , is followed to set-up at 127° C in a closed vessel. The total pressure at equilibrium was 20 atm. The KC for the reaction is (A) 0.092 text textM2 (B) 0.085 text textM2 (C) 3.045 text textM2 (D) None of these

Tardigrade Admin · Accepted Answer

pNH3=pH2S=(20/2)=10 textatm KP=pNH3× pH2S =100 textat textm2 K P = K C ( RT )Δ n 100= K C (0.0821 × 400)2 K C =0.092 M 2

Q. The equilibrium, $N H_{4} H S (s) ⇌ N H_{3} (g) + H_{2} S (g)$ , is followed to set-up at $12 7^{\circ} C$ in a closed vessel. The total pressure at equilibrium was 20 atm. The $K_{C}$ for the reaction is

$0.092 M^{2}$

$0.085 M^{2}$

$3.045 M^{2}$

None of these

$pN H_{3} = p H_{2} S = \frac{20}{2} = 10 atm$

$K_{P} = pN H_{3} \times p H_{2} S$

$= 100 at m^{2}$

$K_{P} = K_{C} (RT)^{Δ n}$

$100 = K_{C} (0.0821 \times 400)^{2}$

$K_{C} = 0.092 M^{2}$

Q. The equilibrium, NH4​HS(s)⇌NH3​(g)+H2​S(g) , is followed to set-up at 127∘C in a closed vessel. The total pressure at equilibrium was 20 atm. The KC​ for the reaction is

0.092M2

0.085M2

3.045M2