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If a gas effuses at a rate 0.52855 times as fast as CI2 what is the gas?

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User SebasSBM
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Answer:

The rate of effusion for a gas is inversely proportional to the square-root of its molecular mass (Graham's Law). The gas with the lowest molecular weight will effuse the fastest. The lightest, and therefore fastest, gas is helium.

Step-by-step explanation:

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User Shmim
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