5.1 g NH4SH is introduced in 3.0 L evacuated flask at 327oC. 30% of the solidNH4SH decomposed to NH₃ and H₂S as gases. The KP of the reaction at 327oC is
(R=0.082 L atm mol⁻¹, molar mass of S=32 g mol⁻¹, molar mass N=14 g mol⁻¹.
A 1×10⁻⁴atm²
B 4.9×10⁻⁴atm²
C 0.242atm²
D 0.242×10⁻⁴atm²