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A chemical engineer needs to design a distillation column for the separation of a mixture containing ethanol (boiling point of 78.4°C) and water. The desired composition of the distillate is a minimum of 90% ethanol. What is the minimum number of theoretical trays needed in the column to achieve this composition, given that the feed contains 40% ethanol and the reflux ratio is 1.5?
answered
Jan 22
in
Chemical engineering
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votes
24
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Why is Carl Rogers' person-centered therapy important?
answered
Jan 20
in
Psychology
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24
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What is attachment style according to Mary Ainsworth?
answered
Jan 17
in
Psychology
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23
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Who is known for developing the social learning theory?
answered
Jan 17
in
Psychology
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22
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According to the Reactance Theory, what happens when people perceive a threat to their freedom?
answered
Jan 17
in
Psychology
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30
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Where in positioning theory does the concept of 'we-ness' come into play?
answered
Jan 15
in
Psychology
0
votes
36
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What is meant by disenfranchised grief?
answered
Jan 14
in
Psychology
0
votes
19
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What occurs when the immune system is not working properly?
answered
Jan 7
in
Science
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votes
26
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What is the process of removing wastes and excess water from the body?
answered
Jan 7
in
Science
0
votes
30
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What is the fourth planet from the sun?
answered
Jan 7
in
Science
0
votes
19
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What have approximately the same mass as protons but no charge?
answered
Jan 6
in
Science
0
votes
34
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Natural selection cannot create new variations in organisms - these new variations must be created by what, which are usually associated with some sort of abnormality?
answered
Dec 31, 2024
in
Science
0
votes
29
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Converging plates can be oceanic, continental, or one of each. if at least one is oceanic, it will subduct. a subducting plate creates what?
answered
Dec 30, 2024
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Science
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votes
27
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Cellular respiration is the reverse or opposite of what?
answered
Dec 30, 2024
in
Science
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