Chemistry - Chemical Equilibrium Question with Solution | TestHub
ChemistryChemical EquilibriumLe-Chatelier's PrincipleHard2 minQB
ChemistryHardsingle choice
Passage / Comprehension
Solid NH₄HS is heated at 100 °C in a closed vessel; the equilibrium is NH₄HS(s) ⇌ NH₃(g) + H₂S(g), with Kp = 0.36 atm². Assume the vessel initially contains no gaseous ammonia or hydrogen sulfide and solid remains at equilibrium.
Which statement is correct for that equilibrium?
Options:
Answer:
C
Solution:
At fixed temperature does not change on addition of a substance or inert gas, excluding D. Extra pure solid does not alter the equilibrium partial pressures (A false). Inert gas at constant volume leaves the reactive partial pressures unchanged (B false). At constant pressure the gas mixture expands when inert gas is added, lowering the reactive partial pressures and favoring forward decomposition, provided solid remains (C true).
Stream:JEESubject:ChemistryTopic:Chemical EquilibriumSubtopic:Le-Chatelier's Principle
⏱ 2mℹ️ Source: QB
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