Derive an expression for the capillary height change h, as shown, for a fluid of surface tension Y and contact angle theta between two parallel plates W apart Evaluate h for water at 20 deg C if W 0 5 mm Width b into paper

Question: Derive an expression for the capillary height change h, as shown, for a fluid of surface tension Y and contact angle θ between two parallel

Derive an expression for the capillary height change h, as shown, for a fluid of surface tension Y and contact angle θ between two parallel plates W apart. Evaluate h for water at 20°C if W = 0.5 mm.

Width b into paper

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