题目内容
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提问人:网友yinnianjie
发布时间:2022-01-07
[主观题]
When 10.0 mL of water at 20°C is placed in an Ostwald viscometer, it takes 136.5 s for the
liquid level to drop from the first mark to the second. For 10.0 mL of hexane at 20°C in the same viscometer, the corresponding time is 67.3 s. Find the viscosity of hexane in the unit of cP at 20°C and 1 atm. The viscosity of water is 1.002 cP. You might need to find the density of water and hexane yourself.
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