Hydrogen
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Questions and Answers

What is the molecular mass of hydrogen?

  • 4.032 kg/kmol
  • 1.008 kg/kmol
  • 8.064 kg/kmol
  • 2.016 kg/kmol (correct)

    • What is the heating value of hydrogen per kilogram?

  • 120,000 kJ/kg
  • 262,800 kJ/kg
  • 383,600 kJ/kg
  • 141,800 kJ/kg (correct)

    • What is the most plentiful element in the universe?

  • Oxygen
  • Hydrogen (correct)
  • Nitrogen
  • Carbon

    • What is the most important requirement for generating electricity from geothermal energy?

    <p>Sufficient fluid</p> Signup and view all the answers

    What is the primary source of geothermal energy?

    <p>The Earth's core</p> Signup and view all the answers

    What is an example of indirect use of geothermal energy?

    <p>Hot springs use geothermal pumps</p> Signup and view all the answers

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