Energy Changes in Chemical Reactions
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Questions and Answers

Which type of system allows transfer of matter and energy between the system and surroundings?

  • Isolated system
  • Open system (correct)
  • Closed system
  • Thermodynamic system

    • What is the study of the energy changes that occur during chemical reactions & changes of state?

  • Thermodynamics
  • Thermoelectricity
  • Thermophysical chemistry
  • Thermochemistry (correct)

    • What does the Law of Conservation of Energy state?

  • Energy is neither created nor destroyed in any chemical or physical process (correct)
  • Energy is created and destroyed in any chemical or physical process
  • Energy can be created but not destroyed in any chemical or physical process
  • Energy is destroyed but not created in any chemical or physical process

    • What is the energy transferred between a system and surroundings due to difference in their temperatures called?

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

    "All changes that matter undergoes, whether physical or chemical, occur with a loss or gain of energy" - This statement best relates to which principle?

    <p>First Law of Thermodynamics</p> Signup and view all the answers

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