Some solid N H_4 HS is placed in a flask containing 0.5 , atm of … - Vidyadip

MCQ

Some solid $N{H_4}HS$ is placed in a flask containing $0.5\, atm$ of $N{H_3}$, what would be pressures of $N{H_3}$ and ${H_2}S$ when equilibrium is reached $N{H_4}H{S_{(g)}}$ $\rightleftharpoons$ $N{H_{3(g)}} + {H_2}{S_{(g)}}$, ${K_p} = 0.11$

A
$6.65$
✓
$0.665$
C
$0665$
D
$66.5$

✓

Answer

Correct option: B.

$0.665$

(b) ${K_p} = \frac{{{p^2}}}{4};\,\,0.11 = \frac{{{p^2}}}{4} \Rightarrow {p^2} = 0.44$

or $p = \sqrt {0.44} = 0.66444 \approx \,0.665\,atm$

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