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CGP EDU Academic Team
Published on: August 13, 2026
5.1 g NH 4 SH is introduced in 3.0 L evacuated flask at 327°C. 30% of the solid NH 4 SH decomposed to NH 3 and H 2 S as gases. The K p of the reaction at 327°C is (R = 0.082 L atm mol –1 K –1 , molar mass of S = 32 g mol –1 , molar mass of N = 14 g mol –1 )
Text Solution
Verified by ExpertsThe correct answer is:
D
NH 4 HS 
H 2 S + NH 3
0.1(1–0.3) 0.03 0.03
K C = 
K P = K C (RT) Δ n
= 10 –4 × (0.0821 × 600) 2 = 0.242
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