Recent content by Latsabb

I am aware of all of these, but due to it being a mixture, the phase envelope is completely different, and a distillation column has multiple trays, each with a different temperature and pressure to increase separation. After a few more case studies, I contacted the instructor, who then allowed...

I have been given an assignment to use a specified distillation column to separate out propene from a gas. The gas consists of propene, propane, ethane and CO2. Separating out the propane has been straight forward, but ethane and especially CO2 are giving me a hard time. To make matters worse, I...

Hello. I have been running several experiments on an electrolytic cell, and I am trying to determine if side products are being formed at higher voltages. My thinking is that once the initial potential barrier is broken, and the resistance stabilizes, a volt vs amperage graph should be linear...

This isn't for nickel plating as such, and the low solubility is the key, as I need the electrode covered in particles of nickel, not a layer. The nickel is for nucleation sites of a further reaction. And yes, it is Ni(III), black nickel oxide.

I ordered in chemicals for doing some electrolysis work, one of which was Nickel Oxide. I didnt think to check if it was NiO, or Ni2O3. I was supposed to be using NiO for the Ni2+ ions, but I am curious how this would work out with Ni3+ ions? Will Ni3+ still reduce in the same manner as Ni2+? I...

Hello. I need to nickel plate an item, but there are no sources of pure nickel in my immediate area other than guitar strings. I picked up a set, which was labeled as pure nickel, but it was obvious upon inspection that only the wound strings had nickel, and that was only the woven outer layer...

There should be no significant pressure, as it will be heated with free flowing air, and then sealed once the crucible is added. Then there will be an input and output line for reaction gas flow.

It will be a custom container, but since it isn't ordered yet, it should not be a problem to have it made to specs for metal seals. The plan was to use Hastelloy, and from what I have been seeing, the metal seals made great seals on steel.

Thanks, I will check into that. I was afraid that I would need to buy in a ton of the high temperature sealants, and then replace it after every experiment.

It needs to be air tight as we will be monitoring a reaction inside, and measuring gas concentrations. So if it isn't tight, there will be gas exchange with the atmosphere, which will mess up all the measurements.

For my bachelor project, I am in need of an air tight (or very, very near air tight) container, which can withstand 750 C. My original thought was to have a steel container with a lid and gasket, but I was unable to find any gaskets that got anywhere near that. Does anyone know of a gasket...

I finally got it nailed down. Chester was correct, the missing piece here was that dU=Cv,mdT=-PdV. An integration of that, and some minor modifying of terms produced what I was after. Thank you!

Ok, so I end up with: P*(nRT/P)γ=c Which I then turn into: P*(nRT)γ/Pγ=c And then: (nRT)γ/Pγ-1=c Am I on the right track? Because I have been playing around with it, and I can't seem to extract nR out, nor am I having luck manipulating the powers to what I need.

Homework Statement Prove the relationship between the pressure, P, and the temperature, T, for an ideal gas with a reversible adiabatic expansion. Base the proof on the first law of thermodynamics and the ideal gas law. The relationship is: T^(Cp,m/R)/P = constant Where R is the gas constant...

Their point didnt make much sense to anyone, but they were basically looking at it from a charge point of view. Someone else mentioned that the charge hadnt changed, just the energy, and that an increase in charge would have actually pulled them closer. But I guess their point was something...