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The Direct-Proportionality Misreading of Graham's Law

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Assuming effusion rate scales directly with molar mass, rather than inversely with its square root, misreads Graham's law and reverses which gas effuses faster.

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A student expecting the heavier gas to effuse faster, reasoning it has "more mass to push through," gets the ranking backward.

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Graham's law's inverse-square-root relationship means the lighter gas always effuses faster, never the heavier one.

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