有一填料吸收塔,填料高 10m ,用清水逆流洗去混合气中有害组分 A ,在一定的操作条件下,测得进、出塔气体中含 A 分别为 Y A,1 = 0.02 , Y A,2 = 0.004 ,出塔液相中含 A 0.008 (均为比摩尔分数)。相平衡常数 m = 1.5 ,问: ( 1 )该操作条件下的气相总传质单元高度为多少 m ( 2 )因要求塔顶出塔气体中含 A 为 0.003 (比摩尔分数),如液气比不变,填料层应加高多少 m
【单选题】The Quebecois, (partly because of language, and partly because of religion), have (long been considering) (to separate) themselves from (the rest) of the Canadian provinces.
A.
partly because of language, and partly because of religion