Question

Find the speed of sound in oxygen at 117oC if the density of oxygen at N.T.P. is 1.43 kg/m3. Assume data if necessary. (oxygen = 1.41)​

Answer 1

Answer:

I hope you understand this question.

Answer 2

Given:

Temperature (T)$=117^{\circ}\ C$

$=(273+117)=390\ K$

Density of oxygen at N.T.P. (d)$=1.43\ kg/m^{3}$

constant ($=1.41$

R$=8.314 J/mole K$

To Find:

speed of the sound=?

Solution:

Mass of the oxygen (M)$=32\ gm$

$=\dfrac{32}{1000}\\=0.032\ kg$

speed of sound in oxygen at absolute temperature

$v=\sqrt{\dfrac{\gamma RT}{M} } \\=\sqrt{\dfrac{1.41\times8.314\times390}{0.032} } \\=327.9\ m/s.$

The speed of the sound in the oxygen is $327.9 \ m/s.$