Okay. So it's been about 5 years since I had general chemistry, so please forgive me if this is wrong.
After reading your explanation (thanks so much), I decided to the determine the concentration of the negative charges (so that I could multiply it by 5) and then determine the pH. So here's...
Homework Statement
Calculate the pH of a solution of L-glutamic acid in which the ionic species with a net charge of -1 is 5 times greater than that of the isoelectric structure. (Refer to pKa Table at end of problem set).
Homework Equations
pKa for glutamic acid:
-COOH = 2.19...
Alright, so I solved this equation (using \epsilon = 1):
qtot = \epsilon\sigma(Ts4 - Tsurr4)*2\piRL
using 2 kW for qtot and I got Ts = 1294.3 K. So... what does that mean?
I guess I'm confused on where you can draw the line of whether or not there is significant heat transfer due to...
Homework Statement
Two students, A and B, are discussing a heat transfer problem regarding what the surface temperature of a cartridge electrical heater would be when exposed to a water flow (CASE 1) and an air flow (CASE 2).
Case 1:
hw = 5000 W / (m2 * K); Tsurr = 20ºC
Case 2...