In a laboratory experiment the speed of sound in dry air at 0∘C and 1.01×105Pa is measured to be 332ms−1. The density of air under these conditions is 1.293kgm−3.
a. (i) Using the measured speed and the given density and pressure, calculate the value of γ that the experiment implies.
b. (ii) The tabulated value of γ for air is 1.40. Find the percentage deviation of the experimental γ from the tabulated value.
c. (iii) Discuss two possible experimental or theoretical reasons that could account for the deviation obtained in part (ii).