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JEE Main Chemistry question

ChemistryStates of Matter (Gaseous & Liquid State)JEE Main

A cylinder containing litre of at was leaking. When the leakage was checked, the pressure inside the cylinder was found to have reduced from to . The ratio of the amount of initially present to that left after the leakage is equal to

Answer: 4

Solution

At constant , moles , so the ratio is simply .

Question ID VK-134553