Recent activity by JennaFairfax

1 answer 33 views

Design a distillation column to separate a mixture of cyclohexane and toluene with a feed composition of 60 mol% cyclohexane and 40 mol% toluene. The distillate product should contain a minimum of 90 mol% cyclohexane and the bottom product should contain a maximum of 10 mol% cyclohexane. You have access to a temperature range of 80-150°C and a pressure range of 1-5 atm. Determine the number of theoretical plates required for this separation and the corresponding reflux ratio.

answered Feb 4 in Chemical engineering

1 answer 39 views

Calculate the standard enthalpy change for the combustion of ethane (C2H6) gas to form carbon dioxide (CO2) gas and water (H2O) vapor at 298 K and 1 atm. The balanced chemical equation for the reaction is: C2H6(g) + 3.5 O2(g) → 2 CO2(g) + 3H2O(g) Given that the standard enthalpy of formation for C2H6(g) is -84.68 kJ/mol, CO2(g) is -393.51 kJ/mol, and H2O(g) is -241.82 kJ/mol.

asked Feb 3 in Chemical thermodynamics

1 answer 34 views

Calculate the enthalpy change for the combustion of methane gas if the standard enthalpies of formation of CH4(g) and H2O(l) are -74.8 kJ/mol and -285.8 kJ/mol, respectively.

asked Jan 23 in Chemical thermodynamics

1 answer 34 views

What is the role congruity theory of prejudice?

answered Jan 20 in Psychology

1 answer 26 views

What is the Minority Stress Model?

asked Jan 15 in Psychology

1 answer 42 views

What is the role of the auditory nerve?

answered Jan 14 in Psychology

1 answer 54 views

What is working memory?

answered Jan 13 in Psychology

1 answer 33 views

What is the main difference between classical and operant conditioning?

answered Jan 10 in Psychology

1 answer 29 views

Where on the earth's surface does the water cycle takes place?

asked Jan 8 in Science

1 answer 22 views

What was the first amino acid to be isolated?

answered Jan 8 in Science

1 answer 10 views

What type of plants are the mosses, the hornwarts, and the liverworts considered to be?

answered Jan 8 in Science

1 answer 19 views

Vibrating objects such as drumheads produce what?

answered Jan 2 in Science

1 answer 51 views

Dietary proteins are broken down into what components when food is digested?

asked Dec 30, 2024 in Science

1 answer 37 views

In animals, what process occurs only in germ cells, which are in the ovaries or testes?

answered Dec 27, 2024 in Science

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