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82问答网 > 1mol任何气体在标准状况下的体积都是22.4L．试估算温度为零摄氏度，压强为2个标准大气压状态下单

1mol任何气体在标准状况下的体积都是22.4L．试估算温度为零摄氏度，压强为2个标准大气压状态下单

2025-03-15 06:53:47

推荐回答（1个）

回答1：

设0℃，P₁=2大气压下，体积V₁=1m³，在标准状态下，压强P₂=1大气压，体积V₂
由P₁V₁=P₂V₂得：
到V₂=

P1V1

P2

＝

2×1

1

m³=2 m³
设分子个数为N，则N＝NA

V2

22.4

＝5.4×1025(个)
答：气体分子数目5.4×10²⁵个．

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