Question #136177
calculate the speed of sound in helium gas at STP.
1
Expert's answer
2020-10-05T10:57:19-0400
vsound=γRTMvHe=5RT3M=5(8.31)(273)3(0.004)=972msv_{sound}=\sqrt{\frac{\gamma RT}{M}}\\v_{He}=\sqrt{\frac{5 RT}{3M}}=\sqrt{\frac{5 (8.31)(273)}{3(0.004)}}=972\frac{m}{s}


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