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
Water’s liquid state at room temperature and is probably attributable to hydrogen .
Water is a molecule of fairly negligible mass: ##18.01*g*mol^-1##. This is less than ammonia, or dioxygen, or dinitrogen, a little more than methane, but still less than ethane, and propane. And yet all these other molecules are GASES at room temperature, and have normal boiling points below that of water.
We know, or should know, that as atoms, and molecules get bigger, there should be a greater degree of dispersion forces that operate between particles, yet it seems that the boiling point of water is anomalously high. And so in fact it is.
The difference between water and these other molecules that another intermolecular force operates, and that is hydrogen bonding. Oxygen is electronegative with respect to hydrogen, and tends to polarize electron towards itself. The result is that we may represent the water molecule as ##””^(delta+)H-^(delta-)O^(delta-)-H^(delta+)##, i.e. as a dipole in which charge is strongly separated.
Given the strength of this dipole, and the small size of the water molecule, this interaction between the dipoles of adjacent molecules acts as a potent intermolecular force that elevates water’s boiling point.
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 more
Each 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 more
Thanks 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 more
Your 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 more
By 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