Chemistry - Chemical Equilibrium Question with Solution | TestHub
ChemistryChemical EquilibriumProblems involving KpHard2 minQB
ChemistryHardsingle choice
The minimum mass of NH4HS(s) needed to establish equilibrium in the same evacuated 2.0 L vessel at the same temperature is
Options:
Answer:
A
Solution:
Equilibrium in the evacuated vessel needs PNH3 = 240 mm = 240/760 atm Moles of NH3 = PV/RT = (240/760)(2.0)/(0.0821 × 300)
Each mole of NH3 comes from 1 mol of NH4HS, molar mass 51 g/mol
Mass = 240 × 2 × 51/(0.0821 × 300 × 760) g ≈ 1.31 g
This is option (a).
Stream:JEESubject:ChemistryTopic:Chemical EquilibriumSubtopic:Problems involving Kp
⏱ 2mℹ️ Source: QB
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