ive specific answers to the following questions:(a) Under what condition, HETP expression isn’t valid?(b) Kremser’s equation is valid when --------- and -------- lines are straight. (Fill in the blanks).(c) Fenske’s equation considers total or partial condenser?(d) To solve a design problem via Ponchon-Savarit method; --------- and ---------- profiles arerequired in the problem statement.(e) Plate efficiency of a trayed tower is known as ---------- plate efficiency.(f) Pinch point in a trayed tower calculation corresponds to maximum solvent flow rate.(true/false).(g) What are the possible units of Henry’s law constant?4371112112
Question
ive specific answers to the following questions:(a) Under what condition, HETP expression isn’t valid?(b) Kremser’s equation is valid when --------- and -------- lines are straight. (Fill in the blanks).(c) Fenske’s equation considers total or partial condenser?(d) To solve a design problem via Ponchon-Savarit method; --------- and ---------- profiles arerequired in the problem statement.(e) Plate efficiency of a trayed tower is known as ---------- plate efficiency.(f) Pinch point in a trayed tower calculation corresponds to maximum solvent flow rate.(true/false).(g) What are the possible units of Henry’s law constant?4371112112
Solution
(a) The HETP (Height Equivalent to a Theoretical Plate) expression isn't valid when there is non-ideal or non-equilibrium stage behavior in the column.
(b) Kremser’s equation is valid when the operating and equilibrium lines are straight.
(c) Fenske’s equation considers a total condenser.
(d) To solve a design problem via Ponchon-Savarit method; enthalpy and composition profiles are required in the problem statement.
(e) Plate efficiency of a trayed tower is known as Murphree plate efficiency.
(f) False. Pinch point in a trayed tower calculation corresponds to the point of minimum driving force, not maximum solvent flow rate.
(g) The possible units of Henry’s law constant can be Pa.m3/mol, atm/mole fraction, or dimensionless depending on the system and conditions.
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