24. Four identical 1.0-L flasks contain the gases He, Cl2, CH4, and NH3, each at 0°C and 1 atm pressure. For which gas do the molecules have the highest average velocity?
(A) H2
(B) O2
(C) CO2
(D) NH3

答案：登入後查看
統計： 尚無統計資料