Exam (elaborations)
Pre-engineering Thermodynamics Questions and Answers 2024
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Pre-engineering Thermodynamics
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Pre-engineering ThermodynamicsThermodynamics - answer The study of the effects of work, heat
flow, and energy on a system and the movement of thermal energy
Example of Thermodynamic system - answer nuclear power plants to electrical
components.
Thermal Energy - answer is kinetic energy in transit from
one object to another due to temperature
difference. (Joules)
Temperature - answeris the average kinetic energy of
particles in an object—not the total amount of
kinetic energy particles. (Degrees)
Matter - answeris made up of molecules in motion (kinetic energy)
increases motion - answerAn increase in temperature
decreases motion - answerA decrease in temperature
Absolute Zero - answeroccurs when all kinetic energy is
removed from an object 0 K = -273° C
Thermal equilibrium - answeris obtained when touching
objects within a system reach the same
temperature.
system loses its ability to do work. - answerWhen thermal equilibrium is reached,
Zeroth Law of Thermodynamics: - answerIf two systems are separately found to be in
thermal equilibrium with a third system, the first two systems are in thermal equilibrium
with each other.
Thermal Energy (heat) Transfer - answerThe transfer or movement of thermal energy
Convection/Conduction/Radiation - answerThermal Energy (heat) Transfer examples
100% efficiency - answeris unattainable
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