Test Bank & Study Guide for
Engineering
Thermodynamics – Key
Concepts and Processes
Overview
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What is thermodynamics?
The science relating heat and work transfers and the changes in properties
of the working substance.
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Define a thermodynamic system.
A collection of matter within prescribed and identifiable boundaries, which
can be open or closed.
What is the difference between an open and closed system?
An open system allows mass transfer across its boundary, while a closed
system does not.
What is meant by surroundings in thermodynamics?
Particles of matter external to the system that may be affected by changes
within the system.
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What is a thermodynamic property?
Any quantity whose changes are defined only by the end states and the
process.
What are examples of thermodynamic properties?
Pressure, Volume, and Temperature of the working fluid.
How is pressure defined?
The normal force exerted per unit area of the surface within the system.
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