8.14 A steam-heated evaporator used to concentrate a feed stream by evaporating water is shown in Fig. E8.14. The mass - Overhead D, xp = 0 Pressure Feed Steam, S XF, F - Condensate, S AC Xm AT Product x, B fraction of solute in the exit stream x is measured and con trolled by adjusting the steam flow rate, S. The control valve i fail- Close Should the composition controller be direct-acting' Justify your answer.

EXPERIMENT: EFFECT OF REGULATING REFLUX RATIO ON TOPPRODUCT COMPOSITION IN DISTILLATION PROCESS OBJECTIVES  : i) To perform stage distillation by separating ethanol and water on different tray ii) To study mass fraction for ethanol and water on different tray In summary, the fundamental procedure in distillation was performed clearly. The pure product of ethanol and water were collected on top product valve and bottom product valve respectively. The refractive index for ethanol and water were observed using the refractometer two times to obtain the reading for the first tray and forth tray.    QUESTION: PLEASE MAKE AN INTRODUCTION PARAGRAPH BASED ON THIS EXPERIMENT.

What is osmosis? What is osmotic pressure? Match the items in the left column to the appropriate blanks in the sentences on the right. higher P=nRT/V solvent II-MRT start solute Psolation Xsolvent Polvent semipermeable stop lower reverse cell Osmosis is defined as the flow of solute concentration to one of pressure is the pressure required to equation from a solution of Reset Help through a solute concentration. membrane. The osmotic the osmotic flow and is given by the following

1. A bioinstrumentation manufacturer mixes four alloy feeds to continuously produce desired alloys to cast scalpels and other surgical equipment. a. Inlet Alloy Feeds 1, 2, 3 and 4 are combined in one mixing unit (see below). The Target Allow I outlet mass flow rate is 1000lbm/hr. F, G, H and K are hypothetical compounds. The weight fractions of components F, G, H and K in the Alloy Feeds and Target Alloy I are given in the table. Calculate the mass flow rates at which the four Alloy Feeds should be supplied to mix to produce the Target Alloy I stream. Alloy Feed 1 Alloy Feed 2- Mixer Alley Feed 3 Target Alloy I Alloy Feed 4 TABLE 3.10 Alloy Feeds and Target Compositions Component weight fractions F. G H K Alloy Feed 1 0.60 0.20 0.20 0 Alloy Feed 2 0.20 0.60 0 0.20 Alloy Feed 3 0.20 0 0.60 0.20 Alloy Feed 4 0 Target Alloy I 0.25 0.20 0.20 0.60 0.25 0.25 0.25 b. For a different application, Alloy Feed 1 and 2 are combined in a mixing tank labeled mixer 1 (see figure). The weight…