Physics

Physics

Problem

Helium gas (M=4 g mol−1M=4\,\text{g mol}^{-1}) is at temperature 300 K300\,\text{K}; its ratio of specific heats is γ=1.66\gamma=1.66. Calculate the speed of sound in helium. a) 9.35×102 m s−19.35\times10^{2}\,\text{m s}^{-1} b) 1.0×103 m s−11.0\times10^{3}\,\text{m s}^{-1} c) 7.9×102 m s−17.9\times10^{2}\,\text{m s}^{-1} d) 1.37×103 m s−11.37\times10^{3}\,\text{m s}^{-1}

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