Recent activity by ChristinaLeF

1 answer 39 views

Design a distillation column for the separation of a mixture containing 35% Ethanol and 65% Water. Calculate the number of theoretical plates required for the separation if the column operates at a pressure of 1 atm and a reflux ratio of 1.5.

answered 2 days ago in Chemical engineering

1 answer 48 views

What parameters affect catalytic activity and selectivity in the hydrogenation of ethylene to ethane using a platinum-based catalyst?

answered 5 days ago in Physical Chemistry

1 answer 28 views

What are the symptoms of PTSD?

asked Jan 20 in Psychology

1 answer 48 views

How does the dual-process model of coping explain emotional processing?

asked Jan 16 in Psychology

1 answer 43 views

What is a p-value in hypothesis testing?

answered Jan 16 in Psychology

1 answer 40 views

According to Robert Yerkes and John Dodson's law, why is moderate arousal effective in performance?

answered Jan 15 in Psychology

1 answer 23 views

What is the difference between a psychologist and a psychiatrist?

answered Jan 13 in Psychology

1 answer 28 views

The presence of what stratospheric gas layer decreases the frequency of skin cancer and other damaging effects of ultraviolet radiation?

asked Jan 2 in Science

1 answer 27 views

The ammonium ion is what type of acid?

answered Dec 31, 2024 in Science

1 answer 27 views

Genetic traits are characteristics encoded in what?

answered Dec 30, 2024 in Science

1 answer 26 views

Cells that are divided by oncogenes contain damaged what?

asked Dec 30, 2024 in Science

1 answer 24 views

What are chemical reactions represented by?

answered Dec 28, 2024 in Science

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