In an acoustic experiment the speed of sound in a sample of neon gas at and is…
PHYSICS · Multi-part · CBSE · Physics · Kinetic Theory · Kinetic Theory
Problem
In an acoustic experiment the speed of sound in a sample of neon gas at 300K and 1atm is measured to be 950ms−1. The molar mass of neon is 20.2gmol−1.
(i) Determine the value of γ for neon implied by the measured speed.
(ii) Theoretically, an ideal monatomic gas has γ=5/3. Compare the experimental value obtained in part (i) with the theoretical value and suggest two factors that might account for any difference.
(iii) Using the value of γ found in part (i), estimate the speed of sound in the same sample when it is heated at constant pressure to 500K.