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High.
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In this question, we need to draw phase diagram of carbon dioxide.
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At lower temperatures, carbon exists at solid which is also called dry ice starting from 0 .1, 1, 10, 100 and then 1000.
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This is the triple point.
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Here is the critical point, dense phase liquid, supercritical region and here is the solid.
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So, at lower temperature and high pressure, carbon dioxide exists as solid called dry ice.
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As pressure decreases or temperature increases, dry ice sublimes directly into gas phase without passing through liquid state.
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The line separating the solid and gas phase is called sublimation curve...