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Chemistry - Chemical Equilibrium Question with Solution | TestHub

ChemistryChemical EquilibriumProblems involving KpMedium2 minQB

ChemistryMediumsingle choice

In a container 64 g $O_{2}$ and 180 g Ar (take its molar mass as 40 g/mol) are present. If the total pressure of the gaseous mixture is 26 atm, then what will be the partial pressure of Ar?

Options:

Answer:

Solution:

Moles of $O_{2} = 64/32 = 2$ . Moles of Ar = $180/40 = 4.5$ .

Mole fraction of Ar = $4.5/6.5 = 9/13$ .

$PAr = (9/13) \times 26 = 18$ atm.

Answer: (B).

Stream:JEESubject:ChemistryTopic:Chemical EquilibriumSubtopic:Problems involving Kp

⏱ 2mℹ️ Source: QB

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