I want to thank your team (Jeff) for finding a new writer when you were unable to reach my existing writer to revise my paper. I appreciate your professionalism and efforts. Thanks
Report (any type)/Brief report
22/09/2021
Good question. The boiling points of the alkanes should increase in the order, ##”2,2,4-trimethylheptane”##, ##”2-methylheptane”##, ##”octane”##.
The longer, and straighter the chain (i.e. the less unbranched) the greater should be the interaction between chains, and thus the greater the boiling point.
Now of course I did not know these boiling points off the top of my head, but I can account for their order:
##”2,2,4-trimethylheptane,”## ##99## ##””^@C##
##”2-methylheptane,”## ##116## ##””^@C##
##”octane”, 125## ##””^@C##
Longer, less branched chains have greater opportunity for intermolecular dispersion forces, and this is certainly reflected in the boiling point. That the longest chain alkane, ##”octane”##, is the most involatile supports our analysis. And even though ##”2,2,4-trimethylheptane”## is the most massive molecule, branching prevents as effective intermolecular interaction as exists in the other pair.
The boiling point of ##n-“heptane”## is ##98.5## ##””^@C## (this I did know off the top of my head, because I found it to be a highly useful laboratory solvent), which is comparable to the boiling point of
##”2,2,4-trimethylheptane”##. Once again, branching serves to decrease the boiling point.
Show more
I want to thank your team (Jeff) for finding a new writer when you were unable to reach my existing writer to revise my paper. I appreciate your professionalism and efforts. Thanks
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.
Read moreEach paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.
Read moreThanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.
Read moreYour email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.
Read moreBy sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.
Read more