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JEE Main 2015 Chemistry question

ChemistryEquilibriumJEE Main 2015

Gaseous dissociates into gaseous according to the reaction . At 300 K and 1 atm pressure, the degree of dissociation of is . If one mole of gas is contained in a vessel, then the density of the equilibrium mixture is:

Answer: (1)

Solution

Starting with 1 mol of and letting dissociate, the amounts at equilibrium are mol and mol , a total of mol. The *mass* is unchanged at g. The volume follows from the ideal

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Question ID VK-115261