Speed of Sound in a Gas
v = sqrt(gamma_a·R·T/M_m)
What it says
How fast sound travels through a gas, which is why it moves faster on a warm day.
Symbols
| Symbol | Quantity | Dimension |
|---|---|---|
v | Sound speed (m/s) | L T^-1 |
gamma_a | Adiabatic index (dimensionless) | 1 |
T | Temperature (K) | Θ |
M_m | Molar mass (kg/mol) | M N^-1 |
Work it out
Enter what you know. No account needed.
Fill in all but one: gamma_a, T, M_m, v are all empty.
Filed under Waves · derive through it in the explorer