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52 Answered Questions for the topic chemical engineering

Chemical Engineering Mechanical Engineering

05/21/20

thermodynamic Problem!!

An inventor claims to have developed a novel heat pump that can, when operating steadily, deliver 100 kW of heat to a building at 40°C whilst consuming 10 kW to drive the unit. Assuming that the... more
Chemical Engineering Math Calculus

04/10/20

Can someone please help me with this? I have to find a solution using Wronskian and I'm having a very difficult time.

Given y1, can you find y2? Find y1y'2 - y'1y2 = W(t). Answer choices: 1. y2 = ty1 2. y2 = y1∫W(t) dt 3. y2 = y1 (c+∫(W(t)/y1^2) dt 4. y2 = y1∫(W(t)/y1) dt
Chemical Engineering Chemistry Organic Chemistry

04/04/20

Potassium Hydroxide from Potassium sulfate

HelloHope you are fineI had reacted 2 pressures:Potassium Sulfate with Ca(OH)2Potassium Sulfate with NaOHI Mixed them with enough water in atmospheric situation then separate CaSO4 and NaSo4 with... more
Chemical Engineering Chemistry Biochemistry

04/02/20

When a 28.4 mL sample of a 0.416 M aqueous hydrofluoric acid solution is titrated with a 0.418 M aqueous potassium hydroxide solution,

When a 28.4 mL sample of a 0.416 M aqueous hydrofluoric acid solution is titrated with a 0.418 M aqueous potassium hydroxide solution,(1) What is the pH at the midpoint in the titration? (2) What... more
Chemical Engineering Chemistry Bioplastic

02/26/20

Creating Bioplastic

Hello I am trying to create a bioplastic as a project for school. Part of this includes using a plasticizer to combine with the starch (thinking of using banana peels) but I'm not sure what... more
Chemical Engineering Chemistry Bioplastic

02/13/20

Chemistry engineering

What can I use as a plasticizer at home? I want to use it to create my own bioplastic for a school project
Chemical Engineering Chemistry Plastic

02/13/20

Making Bioplastic

Hello I am trying to create a bioplastic as a project for school. Part of this includes using a plasticizer to combine with the starch but I'm not sure what substance I can use to act as a... more
Chemical Engineering Chemistry Engineering

02/11/20

Chemical engineering project

What are some household items that can be used to create plastic polymers? I have this project for school that assigns me to create a polymer made from a chemical reaction but I'm stuck on ideas... more
Chemical Engineering Chemistry Biochemistry

12/18/19

I am trying to go thrgouh this question and I need someone who is chemsity expert to try to solve this problem which is related to the contrant rates

You designed a contrast agent that incorporates folate so it can bind to folate receptors. When injected intravenously (IV), this contrast agent will mark circulating tumor cells, overexpressing... more
Chemical Engineering Differential Equations Matlab

11/21/19

Euler with step hand written and Matlab solution

A biological process includes the growth of biomass (B) from substrate (S). The material balances on this batch process yield:where B and S are the respective biomass and substrate concentrations.... more
Chemical Engineering Chemistry Organic Chemistry

11/09/19

How to Calculate Osmotic Pressure and Freezing Point from density and gas pressure

We are given that:The vapour pressure of water at 100C is 1atm and the vapour pressure of an aceous solution of C2H6O2, non volatile, at 100C is .0.83atm. Taking into account the density of the... more
Chemical Engineering Math Chemistry

10/30/19

Specific Heat of Unknown Metal Sample

An irregular lump of an unknown metal has a measured density of 5.25 g/mL. The metal is heated to a temperature of 167 °C and placed in a graduated cylinder filled with 25.0 mL of water at 25.0 °C.... more
Chemical Engineering Chemistry

10/30/19

Specific Heat in cal/g*degreesC

A metal object with mass 27.5g is heated to 97.0 degrees Celsius and then transferred to an insulated container containing 84.4g of water at 20.5 degrees Celsius.  The water temperature rises and... more
Chemical Engineering Chemistry Chemical

07/26/19

Chemical Engineering

How many moles contains 6 gram of carbon? -6 moles -12moles -1/2 moles -3 moles Mole=Weight in gm/Mol. Wt
Chemical Engineering Mechanical Engineering Thermodynamics

07/08/19

What is entropy and why do we care?

Chemical Engineering Chemistry Physics

07/08/19

I want to test if if uv rays are passing through?

I have a film I want to test for harmful uv rays but I don't want to spend thousands of rupees is there a cheap alternative for it. It is meant to be applied on car window so I want to test it... more
Chemical Engineering

07/03/19

Temperature based

If a reactor has a flow rate 2800m3/hr and temp 185'c 1atm pressure,and leaving temp is 50'c ..how i get this 50'c ???by increase flow rate or anything else
Chemical Engineering Career Development Solar Energy

07/03/19

PG DIPLOMA IN SOLAR RENEWABLE ENERGY

Hi, I have done my post graduation diploma in solar renewable energy and I want to know the career options and further education details.
Chemical Engineering Chemistry Mechanical Engineering

06/20/19

Supercritical CO2 chamber

What equipment can I use to maintain CO2 in its supercritical state for a very small scale experiment? Even just a single chamber which can generate the right pressures and temperatures (above 31ºC... more
Chemical Engineering Chemistry Physics

06/18/19

Supercritical CO2 for staining a brain with OsO4?

I'm trying to stain a whole mouse brain with OsO4 for imaging with electron microscopy, and I'm wondering about using supercritical CO2 to facilitate the staining.Any insight into whether this... more
Chemical Engineering History Elementary (k 6th)

05/11/19

Who first made paper?

Chemical Engineering Business Chemistry

04/12/19

What are the top 10 websites a chemistry student must visit?

04/12/19

How to inspire?

Why do most students get caught up in the rat race of learning solely for a grade on a transcript? How to inspire curiosity and creativity for lifelong learning?
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