check this paper out. its old but they used a Ubbeholde type viscometer. they describe capillary diameter and material.
http://pdf.lookchem.com/pdf/22/a1b705c8-6144-41d3-b35d-064da1267259.pdf
in my view, in the case of thin polymer film assembly, alignment will be strongly governed by the type of interaction with the substrate. If this is agreed upon, then the energetic explanation depends on the type of interaction. Is it chemical (covalent), with a functionalized substrate? Then...
this is a very good question.
oxidation and reduction describe the loss or gain, respectively, in the number of electrons. For example Li+ ion can be reduced to Li0 (also known as elemental or lithium metal) if one electron is added to it. Similarly, S2- ion can be oxidized to S0 (elemental...
solvation or dissolution describes the association of a solute and a solvent such that the mixture reaches its lowest energy configuration (most desirable or comfortable arrangement). like the term implies, the association is based on similarities between solute and solvent. a polar solute will...
ok boss, will do. thank you for the term suggestions. i need all the guidance i can get.
i still think my questions are good questions though. :) they are fundamental. for example i would not get upset if someone asked me what is chemical potential and how it relates to the activation energy...
Thank you. What would you suggest is a good source to read about electric motors? How is the motor more loaded mechanically? What assumptions am I making? I don't know much. Please share :)
vapor pressure of a liquid is the pressure at which vapors of the liquid are saturated. if you increase that pressure by just one tad bit by introducing additional vapors into the fixed volume, the molecules will be so close together that you will have a liquid instead of a gas.
so , :) a...
ΔT = K · b(non-dissociated) · i
you are given ΔT, K and the identity of the solute (NaCl) so you know that it dissociates into two particles, Na+ and Cl- so i=2. So now you solve for bsolute.
b(non-dissociated)=1.02/(0.51 x 2)=1 (approximately)
vant Hoff factor (i) is a ratio between the...
Yes that is ohms law :). How does the discharge rate of the battery pack in an electric vehicle vary from 1C to 4C for example when the vehicle accelerates? It's the same electric motor and the same battery. How does the electric motor vary it's load on the battery?
Why so upset guy? I'm just asking a question in a forum which should have the answers. You don't have to answer but don't get bent out of shape. I am a chemist. I work with materials for new batteries. But I don't understand much about battery use. Maybe a few of you can shed some light I would...
I read all the time. If you have a book to suggest please do. The questions are relevant to me. That's why I ask them.
So how does a source like a battery see a load. What in a load makes the battery discharge faster or slower?
thank you for the kind explanations, i am starting to understand.
is the "load" to the "source" just a resistor? so the load of moving a car provides a higher resistance to a source than the load of lighting up a light bulb?
i meant i make it vary, maybe a second motor. but let's talk batteries.
so if i have battery A operating at 10V, 5A and 2ohm and battery B operating at 5V, 5A and 1ohm, will an electric motor care if it receives its 5A of current from the 10V or from the 5V battery?