If given the surface tension of water as 73×10-3 N/m and diameter of – McqOptions

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1.	If given the surface tension of water as 73×10-3 N/m and diameter of capillary as 1mm, calculate the ratio of capillary-vapour pressure of water in this solid to the saturation vapour pressure at 25℃.
A.	99.8%
B.	90%
C.	98%
D.	97%
Answer» B. 90%

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