#Sales Offer!| Get upto 25% Off:

Polyolefins such as polyethylene undergo slow degradation when placed in air. Degradation occurs by reactions with atmospheric oxygen that lead to the formation of carbonyl groups (groups containing oxygen), gradual chain scission (reduction in molecular weight), and loss of strength. The concentration of carbonyl groups can be monitored with

time using the absorbance of the infrared spectroscopy peak at 1741 cm1. In the table below, carbonyl absorbance at 1741 cm−1 versus time data for the oxidation of a 200 μm thick low density polyethylene (LDPE) film at 373 K are tabulated.

 

 

(aThe kinetics for this reaction obey a power-law expression of the form

 

in which is the absorbance, represents time, and Kand Kare constants. Using data in the above table, determine values for Kand K8.

(bCompute the amount of time required for an absorbance of 0.20.

Found something interesting ?

• On-time delivery guarantee
• PhD-level professional writers
• Free Plagiarism Report

• 100% money-back guarantee
• Absolute Privacy & Confidentiality
• High Quality custom-written papers

Related Model Questions

Feel free to peruse our college and university model questions. If any our our assignment tasks interests you, click to place your order. Every paper is written by our professional essay writers from scratch to avoid plagiarism. We guarantee highest quality of work besides delivering your paper on time.

Grab your Discount!

25% Coupon Code: SAVE25
get 25% !!