Calculate the time required for 1 kg of N2 to diffuse across 1 sq. m. of this air film.

A.    One method of measuring diffusion coefficients of vapours is to measure the rate of evaporation of a liquid in narrow tubes. In one such experiment, a glass tube 1 cm in diameter was filled with water at 20°C to within 4 cm of the top. Dry air at 20°C and 1.013 bar was blown across the top of the tube. At the end of 24 hours of steady-state operation, the level of the water dropped 0.1 cm. Calculate the diffusivity of the air-vapour system at 20°C.

 

B.    Nitrogen diffuses steadily through a stagnant layer of air which is 0.5 cm thick. The concentration of N2 is 0.08 kg/m3 at one face and zero at the other. The total pressure is 1 atm and the temperature 20°C. Calculate the time required for 1 kg of N2 to diffuse across 1 sq. m. of this air film.

find the cost of your paper

The post Calculate the time required for 1 kg of N2 to diffuse across 1 sq. m. of this air film. appeared first on Best Custom Essay Writing Services | EssayBureau.com.

HelpHub
Calculate your paper price
Pages (550 words)
Approximate price: -

Why Choose HelpHub

HelpHub

Quality Researched Papers

We always make sure that writers follow all your instructions precisely. You can choose your academic level: high school, college/university or professional, and we will assign a writer who has a respective degree.

HelpHub

Qualified Writers

We have hired a team of professional writers experienced in academic and business writing. Most of them are native speakers and PhD holders able to take care of any assignment you need help with.

StudyAcer

Unlimited Revisions

If you think we missed something, send your order for a free revision. You have 10 days to submit the order for review after you have received the final document. You can do this yourself after logging into your personal account.

StudyAcer

On Time Delivery

All papers are always delivered on time. In case we need more time to master your paper, we may contact you regarding the deadline extension. We will always strive to deliver on time.

StudyAcer

Original & Confidential

We use several writing tools checks to ensure that all documents you receive are free from plagiarism. Our editors carefully review all quotations in the text.

StudyAcer

24/7 Customer Support

Our support agents are available 24 hours a day 7 days a week and committed to providing you with the best customer experience. Get in touch whenever you need any assistance.

Try it now!

Calculate the price of your order

Total price:
$0.00

How it works?

Follow these simple steps to get your paper done

Help Hub

Place your order

Fill in the order form and provide all details of your assignment.

Help Hub

Proceed with the payment

Choose the payment system that suits you most.

Help Hub

Receive the final file

Once your paper is ready, we will email it to you.

HelpHub Writing Services

No need to work on essay at night. Sleep tight, we will cover your back. We offer all kinds of essay writing services.

HelpHub HelpHub

Essays

Essay Writing Service

No matter what kind of academic paper you need and how urgent you need it, you are welcome to choose your academic level and the type of your paper at an affordable price. We take care of all your paper needs and give a 24/7 customer care support system.

HelpHub HelpHub

Admissions

Admission Essays

An admission essay is an essay or other written statement by a candidate, often a potential student enrolling in a college, university, or graduate school. You can be rest assurred that through our service we will write the best admission essay for you.

HelpHub HelpHub

Editing

Editing Support

Our academic writers and editors make the necessary changes to your paper so that it is polished. We also format your document by correctly quoting the sources and creating reference lists in the formats APA, Harvard, MLA, Chicago / Turabian.

HelpHub HelpHub

Revision

Revision Support

If you think your paper could be improved, you can request a review. In this case, your paper will be checked by the writer or assigned to an editor. You can use this option as many times as you see fit. This is free because we want you to be completely satisfied.