Question: The contact angle for water on clean glass is close to zero. Calculate the surface tension of water at 30C given that at that temperature

The contact angle for water on clean glass is close to zero. Calculate the surface tension of water at 30°C given that at that temperature water climbs to a height of 9.11 cm in a clean glass capillary tube of internal radius 0.320 mm. The density of water at 30°C is 0.9956 g cm-3.

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