Multiple choice general knowledge science & technology

What is the speed of sound in air in meters per second (at a pressure of one atmosphere and temperature of 25oC)?

  1. 110

  2. 230

  3. 330

  4. 490
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

At 25°C and 1 atm pressure, sound travels at approximately 346 m/s, so 330 m/s (option C) is closest. Sound speed varies with temperature - about 331 m/s at 0°C, increasing roughly 0.6 m/s per degree. 110 m/s and 230 m/s are too slow, 490 m/s is too fast.

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