Physics, 19.03.2021 18:30 alkaline27

A capillary tube is partially filled with liquid water at 40C, evacuated to remove all air, and sealed, after which the liquid fills 20% of the tube (by volume). The tube is then gradually heated until a temperature is reached for which the vapor-liquid interface in the tube disappears. Required:
a. Use information from the steam tables and your understanding of the P-V behavior of pure fluids to estimate the pressure at which the interface disappears from the tube. At That point, is the phase a liquid or a vapor?
b. Repeat (a) for the case where the tube is initially filled 50% of the way with liquid water at 20Â°C.

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A capillary tube is partially filled with liquid water at 40C, evacuated to remove all air, and seal...

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