Cesium lead tribromide (\(CsPbBr_3\)) perovskite nanocrystals,\(Z_m=55+82+35*3\), with density \(4.83\,gcm^{-3}\), and molar mass (calculated) \(579.82\,gmol^{-1}\),
\(v_{boom}=3.4354*\cfrac{4830}{55+82+35*3}=68.57\,ms^{-1}\)
\(T_{boom}=68.57^2*\cfrac{579.82*10^{-3}}{2*8.3144}=163.95\,K\) or \(-109.20^oC\)
By themselves these values are not indicative.
