Problem: An illustration of Grahams law of effusion.Because pressure and temperature are constant in this figure but volume changes, which other quantity in the ideal-gas equation must also change?

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ideal gas law: PV = nRT

constant P & T & R


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Problem Details

An argon balloon hangs from a wire while a helium balloon floats above it. Over time, the helium balloon shrinks and sinks to level with the wire but the argon balloon appears only slightly smaller.


An illustration of Grahams law of effusion.

Because pressure and temperature are constant in this figure but volume changes, which other quantity in the ideal-gas equation must also change?

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