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Participation: Prize 1 Wealth； Correct answer: Reward of 3 wealth points ； Note: This post is valid for 48 hours. True or False: In a packed tower, a packing layer of a certain height is installed inside the tower; the liquid flows downward in a film-like manner along the surface of the packing, while the gas, which acts as the continuous phase, flows upward and undergoes counter-current mass transfer with the liquid. The component concentrations in the two phases vary stepwise along the height of the tower. ( ) Answer: Incorrect. In a packed tower, a layer of packing is installed to a certain height inside the tower; the liquid flows downward in a film-like manner along the surface of the packing, while the gas, which acts as the continuous phase, flows upward and undergoes mass transfer with the liquid in a counter-current manner. The component concentrations in the two phases vary continuously along the height of the tower. Your participation is the greatest support for our work. Giving roses to others leaves a pleasant fragrance in one’s own hands. https://bbs.hcbbs.com/static/image/hrline/1.gif https://bbs.hcbbs.com/static/image/hrline/2.gif Note: The answers will be released automatically after two days. ““My Device, My Home” – Large-scale Original Photo Sharing Event (Part 2): https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1868167&extra=page%3D1 Petrochemical Deep Processing Section [Daily Question] Summary Thread: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1496481