Phase Change Points on a Phase Diagram
18 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is a critical point on a phase diagram?

  • The point where the three states of matter coexist
  • The point where the substance is indistinguishable between liquid and gaseous states (correct)
  • The point where the substance is indistinguishable between solid and liquid states
  • The point representing the transition between solid and liquid states

    • Which curve on a phase diagram represents the transition between gaseous and solid states?

  • Deposition curve (correct)
  • Fusion curve
  • Vaporization curve
  • Sublimation curve

    • What occurs at the triple point on a phase diagram?

  • The substance is indistinguishable between liquid and gaseous states
  • The transition between liquid and solid states happens
  • The substance is indistinguishable between gas, liquid, and solid states (correct)
  • The transition between gaseous and liquid states happens

    • Which process involves skipping over the liquid state completely during a phase change?

    <p>Sublimation</p> Signup and view all the answers

    On a phase diagram, what does the fusion curve represent?

    <p>Transition between solid and liquid states</p> Signup and view all the answers

    Which point on a phase diagram signifies the substance being indistinguishable between solid and liquid states?

    <p>Triple point</p> Signup and view all the answers

    Which phase change point on the diagram represents the combination of pressure and temperature that facilitates all phases of matter at equilibrium?

    <p>Triple point</p> Signup and view all the answers

    The green line on the diagram divides which two phases?

    <p>Solid and liquid</p> Signup and view all the answers

    What is the melting point of copper in °C?

    <p>1083</p> Signup and view all the answers

    Which phase change does the blue line on the diagram represent?

    <p>Vaporization</p> Signup and view all the answers

    Which substance has the highest boiling point?

    <p>Tungsten</p> Signup and view all the answers

    What does the red line on the diagram represent?

    <p>Sublimation</p> Signup and view all the answers

    When water is boiling at 100°C, what phase change is occurring?

    <p>Vaporization</p> Signup and view all the answers

    At which phase change point does the critical point terminate the liquid/gas phase line?

    <p>Critical point</p> Signup and view all the answers

    At its triple point, a substance can exist in how many phases simultaneously?

    <p>2</p> Signup and view all the answers

    For which substances do the temperature and pressure related to the triple point typically lie below standard temperature and pressure?

    <p><strong>Carbon dioxide</strong></p> Signup and view all the answers

    What is the energy required to melt ice completely, in kJ/kg?

    <p>2256</p> Signup and view all the answers

    During sublimation, a substance changes directly from solid to gas. What is the reverse process called?

    <p>Deposition</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser