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T= _____, P= _____ 8) What is the phase (s, l, g) of a substance at 2.0 atm and 100 °C? Draw a small blue circle around the point that is the triple point for tastegudum. The phase diagram of an alloy made of components A and B, for all combinations of Tand X Liquid water has the highest specific heat of all liquids except for NH3 (True, False) True 2. 14. 1. (Write the names of these phases in the appropriate regions directly on the diagram.) pressure. ~770. Phase Change Worksheet. Unless otherwise noted, LibreTexts content is licensed by CC BY-NC-SA 3.0. The temperature and pressure corresponding to this are known as the critical temperature and critical pressure. Bromine sublimes when the temperature is –25 0C and the pressure is 101.3 kPa. Use this diagram for questions (1) – (9) (1) Label each region of the graph as solid, liquid, or gas. is a graphical way to depict the effects of . 5. phase diagram. What would be the state of the substance at point 9? Material in this phase has _____ volume and _____ shape. If the temperature was then increased at constant pressure, what state(s) would the substance be in at points 10, and 11? Common components of a phase diagram are lines of equilibrium or phase boundaries, which refer to lines that mark conditions under which multiple phases can coexist at equilibrium. pressure. BOTH phases exist on these lines: 15. is a graphical way to depict the effects of . If you think about the three lines which meet at that point, they represent the point that liquid, solid and gas coexist. A phase diagram is a type of chart used to show conditions (pressure, temperature, volume, etc.) BOTH phases exist on these lines: Part C – Phase Diagram for Carbon Dioxide. and . Mark on the diagram the areas corresponding to ice, liquid water, and water vapor. Pure Phases and their Transitions (Worksheet), [ "article:topic", "Phase transition", "authorname:clarkj" ], Former Head of Chemistry and Head of Science. Figure \(\PageIndex{1}\): A typical phase diagram. The molecular viscosity of water is less than most liquids at comparable temperatures (True, False) True 3. The LibreTexts libraries are Powered by MindTouch® and are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. At 1 atmosphere and room temperature (25 C), would you expect solid carbon dioxide to melt to the liquid phase, or sublime to the gas phase? Use this diagram … Suppose you had the following phase diagram for a simple pure substance: The next phase diagram looks at the effect of changing pressure at constant temperature. Missed the LibreFest? Phase Diagram Worksheet Name: A phase diagram is a graphical way to depict the effects of pressure and temperature on the phase of a substance: The CURVES indicate the conditions of temperature and pressure under which "equilibrium" between different phases of a substance can exist. 2) What is the normal melting point of this substance? EAS 6140 Thermodynamics of Atmospheres and Oceans Worksheet – Phase Diagrams 1. The graph was drawn from data collected as a substance was heated at a constant rate. The phase diagram for bromine is shown below. and . The molecular viscosity of water is less than most liquids at comparable temperatures (True, False) True 3. A phase diagram is a type of chart used to show conditions (pressure, temperature, volume, etc.) phase diagram. Figure 1: A typical phase diagram. Work in groups on these problems. These diagrams (including this one) are nearly always drawn highly distorted in order to see what is going on more easily. 2. Phase Diagram Worksheet Name: _____ A . Suppose the temperature was then increased on this substance at constant pressure. Phase Diagram Worksheet Answers Refer to the phase diagram below when answering the questions on this worksheet: 1) Label the following on the phase diagram above: Solid phase, liquid phase, gas phase, triple point, critical point. Draw a small red circle around the point that is the critical point for tastegudum. Directions: Refer to the phase diagram below when answering the following questions. Part D – Phase Diagram for Tastegudum. 4. Give the state(s) at each of the points 1 to 3. Use the diagram above to explain how that term arises. Name, and explain the significance of, the point C. Curve 1 can be thought of as showing the effect of pressure on melting point. (2) Label the triple point, normal melting point, and normal boiling point on the graph and estimate their values in the spaces below. at which thermodynamically distinct phases occur and coexist at equilibrium (at topic later on in the course). 7) What are the values for temperature and pressure at STP? What physical state would the substance be in under the conditions at point 1? Use the graph to answer the following questions. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739.

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