What is the speed of sound at normal temperature and pressure?
Table of Contents
- 1 What is the speed of sound at normal temperature and pressure?
- 2 How does speed of sound vary with temperature and pressure?
- 3 What is the speed of sound in air of temperature 48 Celsius?
- 4 At what temperature is the speed of sound in air 1.75 times its speed at NTP?
- 5 How do you calculate the speed of sound and temperature?
What is the speed of sound at normal temperature and pressure?
The term is commonly used to refer specifically to the speed of sound in air. At sea level, at a temperature of 21 degrees Celsius (70 degrees Fahrenheit) and under normal atmospheric conditions, the speed of sound is 344 m/s (1238 km/h or 770 mph).
What is the speed of sound at NTP?
Speed of sound in air is 332 m s−1 at NTP.
How does speed of sound vary with temperature and pressure?
Heat, like sound, is a form of kinetic energy. Molecules at higher temperatures have more energy, thus they can vibrate faster. Since the molecules vibrate faster, sound waves can travel more quickly. The speed of sound is also affected by other factors such as humidity and air pressure.
What is meant by NTP What is the ideal value of the velocity of sound in air at NTP?
The velocity of sound in air at N.T.P is 330 m s−1 .
What is the speed of sound in air of temperature 48 Celsius?
Approximate speed of sound Celsius is c = 331.3 m/s.
What is the speed of sound at 35 C?
Tables
| Temperature, T (°C) | Speed of sound, c (m/s) | Characteristic specific acoustic impedance, z0 (Pa·s/m) |
|---|---|---|
| 35 | 351.88 | 403.2 |
| 30 | 349.02 | 406.5 |
| 25 | 346.13 | 409.4 |
| 20 | 343.21 | 413.3 |
At what temperature is the speed of sound in air 1.75 times its speed at NTP?
At 836 K (563 °C), the speed of sound in air will be 1.75 times its speed at S.T.P.
What is the speed of the sound in air of 25 C temperatures?
| Temperature – t – (oC) | Speed of Sound – c – (m/s) |
|---|---|
| 20 | 343.3 |
| 25 | 346.3 |
| 30 | 349.1 |
| 40 | 354.7 |
How do you calculate the speed of sound and temperature?
Speed of sound c ≈ 331.3 + (0.6 × ϑ) in m/s. That gives e.g. at a temperature of ϑ = 20°C a speed of sound of: c ≈ 331.3 + (0.6 × ϑ) = 331.3 + (0.6 × 20) = 343.3 m/s….
| Temperature ϑ (theta) °C | ↔ | Speed of sound v m/s |
|---|---|---|
| Frequency f Hz | ↔ | Wavelength λ m |
How the speed of sound varies with temperature?
Sound travels faster in hotter air as high energy air molecules carry the sound more quickly. On a cold day, when the temperature is minus 25, the speed of sound would be about 1,137 kilometres per hour, or about 10 per cent slower. The speed of sound changes by about . 6 metres per second for every degree.