Question: A container has a double wall where the wall cavity is filled with carbon dioxide at room temperature and pressure. When the container is filled

A container has a double wall where the wall cavity is filled with carbon dioxide at room temperature and pressure. When the container is filled with a cryogenic liquid at 100 K the carbon dioxide will freeze so that the wall cavity has a mixture of solid and vapor carbon dioxide at the sublimation pressure. Assume that we do not have data for CO2 at 100 K, but it is known that at −90°C: Psat = 38.1 kPa, hIG = 574.5 kJ/kg. Estimate the pressure in the wall cavity at 100 K.

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