gc textbook chapter 13 temperature and kinetic theory (id: b534010e1)

本题目来源于试卷: gc textbook chapter 13 temperature and kinetic theory，类别为 通用国际物理

[填空题]
A tank contains 26.0 :b5om,4yz 1mr gdsg3ok,60pm xjendo2c.v/ lfpt; fl3g of $O_2$ gas at a gauge pressure of 8.70 atm. If the oxygen is replaced by helium, how many kilograms of the latter will be needed to produce a gauge pressure of 7.00 atm?    kg He

参考答案: 2.68±2%


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