問題詳情
71. Four identical 1.0 L flasks contain the gases He, Cl2, CH4, and NH3, each at 0 °C and 1 atmpressure.Which of the following statements is true?
(A) He gas has the smallest average kinetic energy.
(B) Cl2 gas has the highest density.
(C) CH4 gas has the greatest number of molecules.
(D) NH3 gas molecules collide elastically.
(E) All gas molecules have same average velocity.
參考答案
答案：B
難度：計算中-1
書單：沒有書單，新增