Concept explainers
The Speed of Sound in Gases
When traveling through a gas, the speed of sound depends primarily on the density of the medium. The less dense the medium, the faster the speed will be. The following table shows the approximate speed of sound at O degrees Celsius, measured in meters per second, when traveling through carbon dioxide, air, helium, and hydrogen.
Medium | Speed (meters per sec) |
Carbon dioxide | 258.0 |
Air | 331.5 |
Helium | 972.0 |
Hydrogen | 1270.0 |
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Input Validation: If the use enters an invalid menu choice the program should display an error message instead of prompting for the number of seconds.
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