The density of a fluid depends more
strongly on temperature than it does on
pressure.
The variation of density with
temperature is responsible for
numerous natural phenomena such as
winds, currents in oceans, rise of
plumes in chimneys, the operation of
hot-air balloons, heat transfer by natural
convection, and even the rise of hot air
and thus the phrase “heat rises”.
To quantify these effects, we need a
property that represents the variation of
the density of a fluid with temperature at
constant pressure.
The density of a fluid depends more
strongly on temperature than it does on
pressure.
The variation of density with
temperature is responsible for
numerous natural phenomena such as
winds, currents in oceans, rise of
plumes in chimneys, the operation of
hot-air balloons, heat transfer by natural
convection, and even the rise of hot air
and thus the phrase “heat rises”.
To quantify these effects, we need a
property that represents the variation of
the density of a fluid with temperature at
constant pressure.
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