Stellar Convection Zones and Energy Transport
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Questions and Answers

Which type of energy transport is primarily or partially responsible for the instability in a convection zone?

  • Radiation (correct)
  • Conduction
  • Both radiation and conduction
  • None of the above

    • What is the main cause of mass movement in a star's convection zone?

  • Gravity
  • Buoyancy (correct)
  • Conduction
  • Radiation

    • What does the Schwarzschild criterion express?

  • The conditions under which a region of a star is stable
  • The conditions under which a region of a star is unstable to convection (correct)
  • The conditions for conduction transport in a star
  • The conditions for radiation transport in a star

    • What happens to a rising parcel of gas in a convection zone if it cools to a lower temperature than its new surroundings?

    <p>It contracts and cools further</p> Signup and view all the answers

    What is the main factor that determines whether a rising parcel of gas in a convection zone will sink back to where it came from?

    <p>Temperature gradient</p> Signup and view all the answers

    Which type of energy transport is primarily responsible for the instability in a convection zone?

    <p>None of the above</p> Signup and view all the answers

    What happens to a rising parcel of gas in a convection zone if it cools to a higher temperature than its new surroundings?

    <p>It will continue to rise</p> Signup and view all the answers

    What does the Schwarzschild criterion express?

    <p>The conditions under which a region of a star is unstable to convection</p> Signup and view all the answers

    What primarily causes the mass movement of plasma within a star's convection zone?

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

    What determines whether a rising parcel of gas in a convection zone will sink back to where it came from?

    <p>The temperature gradient</p> Signup and view all the answers

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