Recent activity by JackieEarly7

1 answer 4 views

Here's a precise problem for a chemistry student to solve related to designing a heat exchanger for a specific process:A chemical plant produces a product with a flow rate of 500 liters per hour, and it needs to be cooled from its initial temperature of 120°C to its final temperature of 80°C before it can be packaged for shipment. The cooling medium that will be used is water, which is available at a flow rate of 400 liters per hour and an initial temperature of 20°C. Design a heat exchanger to cool the product and determine the required surface area of the heat exchanger if the overall heat transfer coefficient is 500 W/m2K.

answered 1 day ago in Chemical engineering

1 answer 31 views

How does changing the temperature affect the equilibrium constant (Kc) and the formation of Fe(SCN)2+ complex ion from Fe3+ and SCN- ions?

asked 2 days ago in Chemical equilibrium

1 answer 51 views

How can we determine the concentration of a sample solution containing a mixture of ferrocyanide and ferricyanide ions using polarography?

asked Jan 29 in Analytical Chemistry

1 answer 7 views

A metal rod of 3 cm diameter and 20 cm length is placed in a solution of hydrochloric acid with a pH of 2 at 25°C. The metal has a critical pitting temperature of 40°C and a standard electrode potential of -0.44V. Assuming that the rod is polarized to a potential of -0.50V, what is the corrosion current density (in mA/cm²) of the metal in the given environment?

asked Jan 22 in ElectroChemistry

1 answer 7 views

What are the implications of attachment theory for the development of personality disorders?

answered Jan 17 in Psychology

1 answer 54 views

What are the elements of the Macrosystem level?

answered Jan 16 in Psychology

1 answer 55 views

How does the attribution theory explain social perception?

answered Jan 15 in Psychology

1 answer 25 views

When do we use perceptual constancy?

answered Jan 15 in Psychology

1 answer 47 views

What is the difference between a mood disorder and an anxiety disorder?

answered Jan 14 in Psychology

1 answer 29 views

What is Social Comparison theory?

asked Jan 13 in Psychology

1 answer 54 views

What is the difference between a random sample and a convenience sample?

asked Jan 13 in Psychology

1 answer 29 views

What will you see if you look at a star through a prism?

asked Jan 8 in Science

1 answer 51 views

What term that shows how fast a population is growing includes new members added to the population over a given period, as well as old members removed from the population?

answered Jan 8 in Science

1 answer 19 views

The existence of the plasma membrane was identified in the 1890s, and its chemical components were identified in 1915. the principal components identified at that time were these?

answered Jan 2 in Science

1 answer 28 views

Saturated hydrocarbons are given the general name of what?

answered Dec 31, 2024 in Science

1 answer 33 views

In eukaryotes, the new mrna is not yet ready for translation. it must go through more processing before it leaves where?

asked Dec 31, 2024 in Science

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