﻿ The speed of sound waves in dry air at NTP is 332 m/sec. Assuming air to be composed of oxygen and nitrogen in the ratio 1:4 and the densities of oxygen and nitrogen at NTP to be in the ratio 8:7, the velocity of sound in oxygen will be equal to: : Kaysons Education

# The Speed Of Sound Waves In Dry Air At NTP Is 332 M/sec. Assuming Air To Be Composed Of Oxygen And Nitrogen In The Ratio 1:4 And The Densities Of Oxygen And Nitrogen At NTP To Be In The Ratio 8:7, The Velocity Of Sound In Oxygen Will Be Equal To:

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## Question

### Solution

Correct option is

314.7 m/sec

Volume of oxygen in air = V

Volume of nitrogen in air = 4V

Mass of oxygen in air = 16V

Mass of nitrogen in air = 4V × 14 = 56 V

Total volume of air = 5V

Total mass = 72 V

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