Speed of Sound in Air

Speed of Sound in Air

### Formula

$$v=\sqrt{\frac{\gamma RT}{M}}$$

### Terminologies

- v → Speed of sound.

- γ → Ratio of specific heats.

- R → Universal gas constant.

- T → Absolute temperature.

- M → Molar mass of gas.

### Conditions / Special Cases

- Speed of sound depends on temperature.

$$v\propto\sqrt T$$

- Speed of sound is independent of pressure at constant temperature.

### Usage

- Used in sound propagation problems.