5.1 g NH₄SH is introduced in 3.0 L evacuated... | Chemical Equilibrium

JEE MAIN 2019

10-01-2019 S2

Question

$5.1 \mathrm{~g} \mathrm{NH}_4 \mathrm{SH}$ is introduced in 3.0 L evacuated flask at $327^{\circ} \mathrm{C} .30 \%$ of the solid $\mathrm{NH}_4 \mathrm{SH}$ decomposed to $\mathrm{NH}_3$ and $\mathrm{H}_2 \mathrm{~S}$ as gases. The $\mathrm{K}_{\mathrm{p}}$ of the reaction at $327^{\circ} \mathrm{C}$ is ( $\mathrm{R}=0.082 \mathrm{~L}$ atm mol ${ }^{-1} \mathrm{~K}^{-1}$, Molar mass of $\mathrm{S}=32 \mathrm{~g} \mathrm{~mol}^{-} { }^1$, molar mass of $\mathrm{N}=14 \mathrm{~g} \mathrm{~mol}^{-1}$ )

Select the correct option:

$4.9 \times 10^{-3} \mathrm{~atm}^2$

$0.242 \mathrm{~atm}^2$

$1 \times 10^{-4} \mathrm{~atm}^2$

$0.242 \times 10^{-4} \mathrm{~atm}^2$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution