UoB 9 Fundamental Concepts of Thermodynamics: Thermodynamics and Energy
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Questions and Answers

What is the main focus of thermodynamics?

  • Relations between heat and work (correct)
  • Energy conversion processes
  • Effects of heat on living organisms
  • Properties of mechanical systems

    • Which form of energy is NOT mentioned as an example in the text?

  • Potential
  • Chemical
  • Nuclear
  • Thermal (correct)

    • How is electrical energy generated from water turbines?

  • Conversion of mechanical energy
  • Conversion of potential energy (correct)
  • Conversion of chemical energy
  • Conversion of thermal energy

    • What happens to a mass when exposed to heating according to thermodynamics?

    <p>Energy transfer into the mass</p> Signup and view all the answers

    Which term describes the power component in the word 'thermodynamics'?

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

    What do windmills primarily convert wind energy into?

    <p>Mechanical energy</p> Signup and view all the answers

    What is the relationship between the cyclic integral of heat and work for a system undergoing a cycle?

    <p>They are equal in magnitude</p> Signup and view all the answers

    How can the energy of a closed system be changed?

    <p>By transfer of energy through work or heat</p> Signup and view all the answers

    What is true about the work done on an adiabatic system according to the First Law of Thermodynamics?

    <p>The work done is equal to the increase in energy</p> Signup and view all the answers

    In the absence of any work interactions, what is the energy change of a system equal to?

    <p>The net heat transfer</p> Signup and view all the answers

    What does the First Law of Thermodynamics state about the heating of water in a pan on top of a range?

    <p>The increase in energy is equal to the work done on the water</p> Signup and view all the answers

    What are the only two ways the energy of a closed system can be changed based on the text?

    <p>Transfer of energy by work or by heat</p> Signup and view all the answers

    What does the First Law of Thermodynamics state?

    <p>The net change in the Total Energy of the system during a process is equal to the difference between the Total Energy Entering and Leaving the system.</p> Signup and view all the answers

    What does the change in total energy of a system consist of, according to the text?

    <p>Internal, Kinetic, and Potential Energies</p> Signup and view all the answers

    What is the new property introduced by the First Law of Thermodynamics?

    <p>Energy of the System</p> Signup and view all the answers

    Which type of systems do not involve changes in velocity or elevation during a process?

    <p>Stationary Systems</p> Signup and view all the answers

    In an adiabatic system, what is equal to the work done on the system by its surroundings?

    <p>The increase in the energy of the system</p> Signup and view all the answers

    What type of energy is considered as 'Energy in transition' between a system and its surroundings?

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

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