I asked this question: Is there a general name for a group connected to a N-atom?
While it may not be the peak of my SE presence, I was suprised that it got closed as a homework. The question itself, as it turned out, may be silly for a chemistry expert, but I really don't see it being about aski...
I know that this question has many other variations on this site, but I'm trying to see if I understood Helmholtz and Gibbs energy properly or not. The material I'm reading from is Physical chemistry by Thomas Engel and Philip Reid, third edition, and An introduction to Thermal Physics by Daniel...
The Periodic Table
A machine has overheated in an air filled enclosure, and a major brass component of mass around 1kg turned black. It was probably not in the high temperature regime for more than 2 hours at a guess and perhaps much less.
So, can anyone estimate what the approximate temperature might have been?
My experiment began last month. There were several stalled efforts because I couldn't bring myself to sacrifice my freshly brewed espresso to science. Eventually I settled on using Starbucks to prepare the coffee, which does seem to offer perhaps an edge in reproducibility.
My aspiration was to...
