Chemistry - Chemical Equilibrium Question with Solution | TestHub
ChemistryChemical EquilibriumDegree of Dissociation/Vapour Density/Molar MassEasy2 minQB
ChemistryEasysingle choice
What is the percentage dissociation of HI at 450°C, if the experiment is started with one mole of HI(g) and one mole of H2(g)?
Options:
Answer:
A
Solution:
H2 is a product of the dissociation, so adding it raises the product concentration The reaction quotient Q exceeds K at the start, so the equilibrium shifts towards HI
Less HI dissociates than in the original experiment
Percentage dissociation is less than 25%
This is option (a).
Stream:JEESubject:ChemistryTopic:Chemical EquilibriumSubtopic:Degree of Dissociation/Vapour Density/Molar Mass
⏱ 2mℹ️ Source: QB
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