Chemistry - Chemical Equilibrium Question with Solution | TestHub

ChemistryChemical EquilibriumMiscellaneous/MixedEasy2 minPYQ_2020
ChemistryEasysingle choice

The equilibrium constant of the reactionA2 g + B2 g⇄2AB gat373 Kis50. If 1 L of flask containing1 moleof A 2  (g) is connected to 2 L flask containing2 moles B2 gat 100 o C , the amount ofABproduced at equilibrium at 100 o C would be

Options:

Answer:
B
Solution:

A2 g   + B2 g  ⇄   2AB g
Initially: 1 3 M    2 3 M
At equilibrium: 1 3 −x M  2 3 −x M  2x  M
Keq=50 =4 x213-x23-x
or50 =36 x21-3x2-3x
or50 9x2 – 9x + 2=36 x2
or450 x2 – 450x + 100=36x2
or414x2 – 450x + 100=0
or x= +450− 450 2 −4×414×100 2×414
orx=+450-202500-1656002×414
orx=450-369002×414=450–192.12×414
=0.31 M
∴moles ofABproduced =0.31 × 6=1.86

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Chemical EquilibriumSubtopic:Miscellaneous/Mixed
⏱ 2mℹ️ Source: PYQ_2020

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