Understanding Heat and Temperature Lecture
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Questions and Answers

What is heat?

  • The measure of the average molecular motions in a system
  • The total energy of molecular motion in a substance (correct)
  • The amount of heat energy available for work in a system
  • The degree of coldness or hotness of a body or environment
  • How is heat usually expressed when added to a substance?

  • As a decrease in the kinetic energies of the molecules of the substance
  • As a decrease in the temperature of the substance
  • As an increase in the kinetic energies of the molecules of the substance (correct)
  • As a change in the state of the substance
  • What is temperature?

  • The degree of coldness or hotness of a body or environment
  • The amount of heat energy available for work in a system
  • The measure of the average molecular motions in a system (correct)
  • The total energy of molecular motion in a substance
  • How is temperature related to the average kinetic energy of the molecules of a substance?

    <p>Temperature is directly proportional to the average kinetic energy</p> Signup and view all the answers

    What does specific heat capacity represent in the equation q = mcΔT?

    <p>The ability of a substance to store heat</p> Signup and view all the answers

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