Velocity of sound in air at 1 atm at 0°C is aboutSelect an answerA360 m/sB380 m/sC330 m/sD400 m/s

To determine the velocity of sound in air at 1 atm and 0°C, we can refer to the physics concept regarding the speed of sound in gases.

1. Basic Concept: The speed of sound in air can be approximated using the formula: $v = 331.3 + (0.6 \times T)$ where $v$ is the speed of sound in meters per second and $T$ is the temperature in degrees Celsius.

2. Temperature Calculation: For $T = 0°C$: $v = 331.3 + (0.6 \times 0) = 331.3 \, \text{m/s}$

3. Analysis: Since the calculated speed $331.3 \, \text{m/s}$ is closest to one of the options provided, it is important to assess the choices:

   • A: 360 m/s
   • B: 380 m/s
   • C: 330 m/s
   • D: 400 m/s

   The calculated value of 331.3 m/s rounds to 330 m/s, which is provided as option C.

4. Verification: The accepted velocity of sound in air at 0°C is typically cited as approximately 331 m/s, confirming that option C is indeed the correct choice.

Final Answer

The velocity of sound in air at 1 atm and 0°C is approximately C) 330 m/s.