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Three footballs are filled with nitrogen, hydrogen and helium respectively. If the gases leak, then the ratio of the rate of leakage (rN2:rH2:rHe) from the three footballs (at the same time) is: |
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Answer» Three footballs are filled with nitrogen, hydrogen and helium respectively. If the gases leak, then the ratio of the rate of leakage (rN2:rH2:rHe) from the three footballs (at the same time) is: |
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