Homework Statement
Calculate the Gibb’s energy of the vaporization of 1 kg of water at 50° C and 1 bar. The enthalpy change for the vaporization of water at its normal boiling point is 2257 J/g, and the heat capacities of liquid and vapour water are 4.18 J/g·K and 2.09J/g·K respectively...
Homework Statement
I have two identical volumes of gas, and I heat them both to 100 C, one under constant pressure, one under constant volume. Which has more internal energy after the process?
The attempt at a solution
I believe that they both have the same as the extra heat you have...
Hi guys, is this right?
Homework Statement
A mole of nitrogen is heated at constant external pressure of 1 atm from 25° C to 100° C. The heat capacity of nitrogen is 29.1 J/mol·K.
Calculate ΔSsurr
2. The attempt at a solution
delta_S=Q/T = -1*29.1*75/373=-5.85 J/K
(heat...
Cambridge won't care about your GCSEs, I got in and mine are only slightly better than yours. Just do it, you'll be upset for a week if they reject you but you'll regret it for a lot longer if you don't take the chance.
I'm about to be choosing my final year project for my chemistry degree.
Basically, I love theoretical chemistry, but I don't want to work in academia and I can't find much about the industrial demand for theoreticians. I'm very interested in surface science too, so it's not a huge compromise...
Well I can do the last bit, but the other two I have no idea how to provide a mathematical reason for, all I can come up with is some hand-waving nonsense about equilibrium.
Hi, I hope this is advanced enough to warrant being in this section:
I'm supposed to use the Gauss theorem (and presumably his law) to show:
1)The charge on a conductor is on the surface.
2)A closed hollow conductor shields its interior from fields due to charges outside, but doesn't...