問題詳情

8. At the same temperature and pressure, the time required for a certain gas to diffuse is 4 times that ofthe same volume of hydrogen (H2). Which of the following is the gas? (atomic mass: H = 1, N = 14, O= 16, S = 32)
(A)O2
(B) CO2
(C) NH3
(D)SO2

參考答案

答案:[無官方正解]
難度:計算中-1
書單:沒有書單,新增