1. Tardigrade
  2. Question
  3. Chemistry
  4. Decomposition of ammonium chloride is an endothermic reaction. The equilibrium may be represented as: NH 4 Cl ( s ) leftharpoons NH 3( g )+ HCl ( g ) A 6.250 g sample of NH 4 Cl is placed in an evaculated 4.0 L container at 27° C. After equilibrium the total pressure inside the container is 0.820 bar and some solid remains in the container. Answer the followings The value of Kp for the reaction at 300 K is

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Q. Decomposition of ammonium chloride is an endothermic reaction. The equilibrium may be represented as: $NH _4 Cl ( s ) \rightleftharpoons NH _3( g )+ HCl ( g )$
A $6.250 \,g$ sample of $NH _4 Cl$ is placed in an evaculated $4.0\, L$ container at $27^{\circ} C$. After equilibrium the total pressure inside the container is $0.820$ bar and some solid remains in the container. Answer the followings
The value of $K_p$ for the reaction at $300 K$ is

Equilibrium

Solution:

$P_{ NH _3}=P_{ HCl }=\frac{0.820}{2}$ bar
$\therefore K_p=P_{ NH _3} \times P_{ HCl }=0.41 \times 0.41=0.168$