Next |
Prev |
Up |
Top
|
Index |
JOS Index |
JOS Pubs |
JOS Home |
Search
The speed of sound in a gas depends primarily on the
temperature, and can be estimated using the following formula
from the kinetic theory of gases:B.33
where, as discussed in the previous section, the adiabatic gas
constant is
for dry air,
is the ideal gas
constant for air in meters-squared per second-squared per
degrees-Kelvin-squared, and
is absolute temperature in degrees
Kelvin (which equals degrees Celsius + 273.15). For example, at zero
degrees Celsius (32 degrees Fahrenheit), the speed of sound is
calculated to be 1085.1 feet per second. At 20 degrees Celsius, we
get 1124.1 feet per second.
Next |
Prev |
Up |
Top
|
Index |
JOS Index |
JOS Pubs |
JOS Home |
Search
[How to cite this work] [Order a printed hardcopy] [Comment on this page via email]