Answer to Question #328423 in Physics for Super

Question #328423

What is the speed of sound in a helium gas at a pressure of 15000pa

1
Expert's answer
2022-04-14T11:18:42-0400

The speed of sound in a gas

vs=γPρ=γRTMv_s=\sqrt{\gamma\frac{P}{\rho}}=\sqrt{\gamma\frac{RT}{M}}

At t=0Ct=0^\circ\rm C

vs=538.312734103=972m/sv_s=\sqrt{\frac{5}{3}*\frac{8.31*273}{4*10^{-3}}}=972\:\rm m/s


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