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已知 293 K 时的表面张力 g = 0.07275 N · m -1 , 摩尔质量 M = 0.018 kg · mol -1 , 密度 r = 10 3 kg · m -3 。 273 K 的饱和蒸气压为 610.5 Pa ,在 273 – 293 K 温度区间内水的摩尔气化热 D Vap H m = 40.67 kJ · mol -1 ,求 293 K 水滴半径 R ′ = 10 -9 m 时,水的饱和蒸气压。
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