Speed of Sound in Gas

Speed of Sound in Gas

### Formula

$$v=\sqrt{\frac{\gamma P}{\rho}}$$

### Alternative Form

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

### Terminologies

- γ → Ratio of specific heats.

- P → Pressure.

- ρ → Density.

- R → Gas constant.

- M → Molar mass.

### Conditions / Special Cases

- Speed increases with temperature.

$$v\propto\sqrt T$$

### Usage

- Used in sound wave calculations.