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JEE Main & Advanced Chemistry States of Matter / पदार्थ की अवस्थाएँ - गैस एवं द्रव Question Bank Mock Test - States of Matter

  • question_answer
    An effusion experiment requires 40 s for a certain number of moles of a gas of unknown molar mass to pass through a small orifice into a vacuum. Under the same conditions, 16s was required for the same number of moles of \[{{O}_{2}}\] to effuse. The molar mass of the unknown gas is

    Answer:

    200


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