Recent activity by JacquelynP76

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Design a distillation column to separate a mixture of ethanol and water with an initial composition of 40% ethanol and 60% water. The column should achieve a separation of at least 95% ethanol in the distillate product. The available packing materials are Pall rings with a diameter of 1.5 inches and a height of 2 inches. The column inlet flow rate is 1000 kg/hr with a pressure of 1 atm and a temperature of 80°C. The column should have 25 theoretical plates and operate at reflux ratios ranging from 1.5 to 3.0. Additionally, the column diameter should not exceed 3 feet. Provide the design calculations and specifications for the distillation column.

asked 1 day ago in Chemical engineering

1 answer 51 views

Calculate the corrosion current density (in mA/cm²) of a silver electrode in a galvanic couple with a standard hydrogen electrode if the measured potential of the silver electrode is -0.25 V versus the standard hydrogen electrode at a temperature of 25 °C. The Tafel slope of the silver electrode is 30 mV/decade and the corrosion potential of silver in the given environment is -0.15 V.

answered Jan 23 in ElectroChemistry

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According to Richard Lazarus's cognitive appraisal theory, what determines an individual's emotional response to a given situation?

answered Jan 20 in Psychology

1 answer 49 views

Please compare connectionist and modular theories of cognitive processing.

answered Jan 15 in Psychology

1 answer 17 views

What is the theory of social facilitation?

answered Jan 15 in Psychology

1 answer 10 views

What is visual agnosia?

answered Jan 14 in Psychology

1 answer 24 views

What is a monocular cue?

answered Jan 14 in Psychology

1 answer 26 views

What is the interaural level difference?

answered Jan 14 in Psychology

1 answer 19 views

What are the two divisions of the autonomic nervous system?

answered Jan 14 in Psychology

1 answer 20 views

What is the difference between deductive reasoning and inductive reasoning?

answered Jan 14 in Psychology

1 answer 15 views

What's the name for an atom that has gained or lost an electron?

asked Jan 8 in Science

1 answer 18 views

What term describes a region of space around an atom that has a non-zero probability for an electron with a particular energy?

answered Jan 7 in Science

1 answer 12 views

What is a popular treatment for kidney failure?

answered Jan 6 in Science

1 answer 41 views

What are groups of tens to hundreds of thousands of stars held tightly together by gravity called?

asked Jan 3 in Science

1 answer 8 views

Unlike the cells of plants and fungi, animal cells lack what?

answered Jan 2 in Science

1 answer 20 views

The most common carbon atoms have six protons and six neutrons in their what?

answered Jan 2 in Science

1 answer 26 views

Mitosis and meiosis are two types of what process, with dramatically different products?

answered Dec 31, 2024 in Science

1 answer 27 views

Transverse divisions are associated with leaf elongation, and longitudinal divisions are associated with what?

asked Dec 27, 2024 in Science

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