Constant Pressure Transitions Suppose you had the following phase diagram for a simple pure substance: pressure T. temperature a. What physical state would the substance be in under the conditions at point 1? b. Suppose the temperature was then increased on this substance at constant pressure. What state(s) would the substance be in at each of points 2 to 5? c. Suppose the constant pressure was 1 atmosphere. What useful information can you get from the diagram about the simple physical properties of the substance? d. Suppose at a much lower pressure, the substance was under the conditions at point 6. Describe what happens to the substance as you increase the temperature from point 6 to point 8.

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