Equilibrium - Hard

5.1\,\text{g}

\mathrm{NH_4SH}

is introduced in a

3.0\,\text{L}

evacuated flask at

327^{\circ}\mathrm{C}

30\%

of the solid

\mathrm{NH_4SH}

decomposes to

\mathrm{NH_3}

and

\mathrm{H_2S}

as gases. The

K_p

of the reaction at

327^{\circ}\mathrm{C}

is (

R = 0.082\,\text{L atm mol}^{-1}\text{K}^{-1}

, molar mass of S

= 32\,\text{g mol}^{-1}

, molar mass of N

= 14\,\text{g mol}^{-1}