سرعت صوت در عناصر (صفحه اطلاعات). << منابع اطلاعاتی عناصر شیمیاییRef. CRC: Values are "at room temperature" unless noted, and "for normal atmospheric pressure" ("at 1 atm" for gases).Ref. WEL: Values refer to 293 K "where possible". Mid point values are substituted if ranges were given in their original reference. Not specified further, it is assumed from the values that all (except fluids) are ...