Consider a hemispherical droplet of liquid
water residing on a flat surface. Still air surrounds the droplet. At an
infinitely long distance from the gas film, the concentration of water vapor is
effectively zero. At a constant temperature of 308C and 1.0 atm total pressure,
the evaporation rate of the droplet is controlled by the rate of the molecular
diffusion through the still air. Determine the time it will take for the water
droplet to completely evaporate at 30C and 1.0 atm total
system pressure if the initial droplet radius is 5 mm. The vapor pressure of
water at 30C can be
found in the steam tables.
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