High School Chemistry › Help with Phase Diagrams
Which of the following is not a phase transition?
What does critical temperature describe?
What phase is determined by the inability to distinguish liquid from gas?
Carbon dioxide does not have a liquid phase under standard conditions. Instead, it transitions from a solid to a gas as temperature increases. Based on this information, which of the following statements is true?
Heating curves are used to graph the change in temperature as heat is added to a system. A solid system is heated until it is converted to a gas, and the heating curve is graphed. Why does the heating curve have two horizontal plateaus?
On an energy diagram for water, in which temperature is graphed against energy input, the temperature of liquid water will increase up to . At this point, the temperature will plateau even as more energy is added. After this brief plateau, the temperature of the water will rise above
.
What value is given by the length of this plateau along the x-axis?