Answered Essay: Plot the following data and determine the average rate for the loss of reactant at t = 25 sec.

Plot the following data and determine the average rate for the loss of reactant at t = 25 sec. Enter the numerical answer with 2 significant figures, no units and in scientific notation. For example; .00126 M/min would be entered as 1.3E-3 (no spaces) 2 A(g) → B 2(g)

Time(sec) [A]: (mol/L)

0.0: 3.20×10-5

10.0: 2.42×10-5

20.0: 1.95×10-5

30.0: 1.63×10-5

40.0: 1.40×10-5

50.0: 1.23×10-5

60.0: 1.10×10-5

Expert Answer

Answer

1st the order of the reaction need to be determined. for this Rate is -dCA/dt= KCAn, n is the order and K is the rate constant . if CAO= initial concentration, CA= concentration at any time

n=0 is zero order and hence when integrated, CA= CAO-Kt, for zero order, a plot of CA vs t has to be straighe line

n=1 is 1st oder and hence when integrated, CA= CAO*exp(-Kt), so a plot of CA vs t has to be exponential

n=2 is second order and when integrated 1/CA= 1/CAO+Kt, a plot of 1/CA vs t is straight line.

All the three plots ( 1st and 2nd plot combined) are generated and shown below

the plots suggest the reaction to be second order whose slope is

1/CA= 1/CAO+996.7 t

at 25 sec, 1/CA= 31362+996.7*25, CA= 1.78*10-5 mol/l

hence rate of loss (-dCA/dt)= (3.2-1.78)*105/25 =5.7*10-7 Mol/l.sec

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

Help Me Write My Essay - Reasons:

Best Online Essay Writing Service

We strive to give our customers the best online essay writing experience. We Make sure essays are submitted on time and all the instructions are followed.

Our Writers are Experienced and Professional

Our essay writing service is founded on professional writers who are on stand by to help you any time.

Free Revision Fo all Essays

Sometimes you may require our writers to add on a point to make your essay as customised as possible, we will give you unlimited times to do this. And we will do it for free.

Timely Essay(s)

We understand the frustrations that comes with late essays and our writers are extra careful to not violate this term. Our support team is always engauging our writers to help you have your essay ahead of time.

Customised Essays &100% Confidential

Our Online writing Service has zero torelance for plagiarised papers. We have plagiarism checking tool that generate plagiarism reports just to make sure you are satisfied.

24/7 Customer Support

Our agents are ready to help you around the clock. Please feel free to reach out and enquire about anything.

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

Place your order

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

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

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

HOW OUR ONLINE ESSAY WRITING SERVICE WORKS

Let us write that nagging essay.

STEP 1

Submit Your Essay/Homework Instructions

By clicking on the "PLACE ORDER" button, tell us your requires. Be precise for an accurate customised essay. You may also upload any reading materials where applicable.

STEP 2

Pick A & Writer

Our ordering form will provide you with a list of writers and their feedbacks. At step 2, its time select a writer. Our online agents are on stand by to help you just in case.

STEP 3

Editing (OUR PART)

At this stage, our editor will go through your essay and make sure your writer did meet all the instructions.

STEP 4

Receive your Paper

After Editing, your paper will be sent to you via email.

× How can I help you?