Question

Using data from figures below determine the velocity of sound in si at 20k and 0c

Answer 1

Answer:

The relation between speed of sound with temperature of the medium is given as:-

where, v = speed of sound at a medium at temp. T

M = molar mass of the material of medium

R = gas constant

γ = adiabatic index

Below image is my working on this question:-

The speed of sound is variable and depends on the properties of the substance through which the wave is travelling. In gases, adiabatic compressibility is directly related to pressure through the heat capacity ratio (adiabatic index), while pressure and density are inversely related to the temperature and molecular weight, thus making only the completely independent properties of temperature and molecular structure important.

Step-by-step explanation: