题目内容
An energy interaction is heat transfer if its driving force is a _______ difference.
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The rate of heat conduction through a plane layer is inversely proportional to _______ .
In _______ , it is due to the combination of vibrations of the molecules in a lattice and the energy transport by free electrons.
Heat transfer processes that involve change of phase of a fluid are considered to be _______ because of the fluid motion induced during the process.
If the temperature of the liquid is lower than the saturation temperature for the existing pressure, it is called a saturation liquid.()
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