Introduction to Heat Transfer and Heat Capacity
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Questions and Answers

What is the heat capacity (C) of a body?

  • The amount of heat needed to raise its temperature by two degrees Celsius
  • Ratio of the quantity of heat supplied to a body to its corresponding temperature rise (correct)
  • The ratio of the quantity of heat to the body's mass
  • The quantity of heat needed to raise the temperature of 1 gram of any material by 1 degree Celsius

    • What is the quantity of heat needed to raise the temperature of 1 gram of water by 1 degree Celsius?

  • 14.5 joules
  • 15.5 joules
  • 6.0 joules
  • 4.2 joules (correct)

    • What is specific heat capacity?

  • The amount of energy emitted in discrete packets of quanta
  • The ratio of the quantity of heat to the body's mass
  • The quantity of heat needed to raise the temperature of 1 gram of water by 1 degree Celsius
  • The quantity of heat needed to raise the temperature of any material by one degree Celsius (correct)

    • What do electromagnetic waves consist of?

    <p>Transverse electric and transverse magnetic fields</p> Signup and view all the answers

    What is a photon?

    <p>A quantum of electromagnetic radiation</p> Signup and view all the answers

    How is the energy of a photon calculated?

    <p>$E = hu$ where $h$ is Planck constant and $u$ is frequency</p> Signup and view all the answers

    What is hyperemia?

    <p>An increased content of blood in a part with distention of blood vessels</p> Signup and view all the answers

    What is the predominant form of radiation in man's natural environment?

    <p>Thermal radiation</p> Signup and view all the answers

    What is the main aim of thermal therapy in modern clinical treatments?

    <p>To modify tissue temperature in a targeted region over time to compel a desired biological response</p> Signup and view all the answers

    What is hyperthermia categorized into?

    <p>Long-term low-temperature hyperthermia and moderate-temperature hyperthermia</p> Signup and view all the answers

    What is thermal ablation also known as?

    <p>High-temperature hyperthermia</p> Signup and view all the answers

    What does laser-induced thermal therapy (LITT) aim to do?

    <p>Deliver therapy due to the interstitially placed high-power lasers in the tumor</p> Signup and view all the answers

    What is the anatomical structure of skin tissue considered as?

    <p>A multilayered structure consisting of epidermis, dermis, and fat layers</p> Signup and view all the answers

    What does thermal energy lead to inside tissue?

    <p>Vibration of molecules and emission of electromagnetic waves</p> Signup and view all the answers

    What are the two techniques emphasized in thermal therapy?

    <p>Hyperthermia and thermal ablation</p> Signup and view all the answers

    What is denaturation?

    <p>The alteration of the characteristics of an organic substance, especially protein, by chemical or physical action</p> Signup and view all the answers

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