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A chemical engineer needs to separate a mixture of ethanol and water using a distillation column. The feed to the column has 30 mol% ethanol and 70 mol% water, and the desired distillate composition is 95 mol% ethanol. The feed rate is 100 kmol/hour and the reflux ratio is 2. Calculate the number of theoretical trays required in the column to achieve the desired distillate composition.
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Jan 22
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Chemical engineering
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53
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Why are medications commonly used in treating mental illness?
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Jan 20
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Psychology
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38
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Where does behavioural theory draw its rationale?
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Jan 16
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Psychology
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63
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What is Piaget's cognitive development theory?
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Jan 15
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Psychology
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39
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What is the role of self-compassion in trauma recovery?
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Jan 15
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Psychology
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13
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How does the social exchange theory differ from equity theory in relationships?
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Jan 15
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Psychology
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80
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What is the theory of resilience?
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Jan 15
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Psychology
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49
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What type of change occurs when matter changes chemically into an entirely different substance with different chemical properties?
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Jan 8
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Science
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What kind of solids are gummi bears or taffy?
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Jan 7
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Science
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72
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What is the smallest aromatic hydrocarbon?
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Jan 7
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Science
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38
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What is the earths crust composed of?
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Jan 6
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Science
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27
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What do you call aquatic biomes in the ocean?
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Jan 6
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Science
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44
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What colorful arc-shaped atmospheric phenomena are produced by a combination of refraction and reflection?
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Jan 6
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Science
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48
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What are the two components of a mixture called?
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Jan 6
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Science
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54
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What are the catalysts that occur naturally in living organisms and are primarily protein molecules?
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Jan 3
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Science
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94
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The oxidation of an alcohol can produce either an aldehyde or what?
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Jan 2
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Science
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34
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Photoautotrophs including (a) plants, (b) algae, and (c) cyanobacteria synthesize their organic compounds via photosynthesis using sunlight as this?
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Dec 31, 2024
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Science
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42
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Light energy is absorbed by which kind of molecule?
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Dec 31, 2024
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Science
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33
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Duckweed and cattails serve what role in the food chain in freshwater biomes?
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Dec 30, 2024
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Science
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52
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Alkenes have double bonds while alkynes have what?
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Dec 30, 2024
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Science
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