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gorica
Group Title
Do you know where can I find how to get relations between heat capacities Cp and Cv for ideal and real gases?
Or someone can write it here?
 one year ago
 one year ago
gorica Group Title
Do you know where can I find how to get relations between heat capacities Cp and Cv for ideal and real gases? Or someone can write it here?
 one year ago
 one year ago

This Question is Closed

LvLWhitey Group TitleBest ResponseYou've already chosen the best response.0
You can always start with Cv=3/2R for a monatomic particle and use Cp=Cv+R. Cv= 5/2R for Diatomic CV= 3R for Polyatomic R is a constant that you know right? Cheers :D
 one year ago

gorica Group TitleBest ResponseYou've already chosen the best response.1
I have to show why is it Cp=Cv+nR for ideal gas and why it is what it is for real gas. I found this, and I am ok with ideal gas... but I am not really clear with real gas :/
 one year ago

LvLWhitey Group TitleBest ResponseYou've already chosen the best response.0
OooOOooo, That complicates things then :( I'm not sure I can help you further, sorry Cheers :D
 one year ago

gorica Group TitleBest ResponseYou've already chosen the best response.1
thanks anyway :)
 one year ago

ghazi Group TitleBest ResponseYou've already chosen the best response.3
hope this will help you out , hold a sec
 one year ago

ghazi Group TitleBest ResponseYou've already chosen the best response.3
if you are not able to read it , let me know :)
 one year ago

gorica Group TitleBest ResponseYou've already chosen the best response.1
I think I found what I was looking for... via coefficient of volume expansion Thank you very much
 one year ago

ghazi Group TitleBest ResponseYou've already chosen the best response.3
\[h= u+PV\]\[dh=du+d(PV)\] \[dh=du+d(RT), dh=du+RdT\]\[\frac{ dh }{ dT }=\frac{ du }{ dT }+R\]\[C _{p}=C _{v}+R, C _{p}C _{v}=R\] you can use this derivation too
 one year ago

ghazi Group TitleBest ResponseYou've already chosen the best response.3
and you are welcome :)
 one year ago

ghazi Group TitleBest ResponseYou've already chosen the best response.3
h enthalpy u  internal energy dh/dT  Cp du/dT Cv
 one year ago

gorica Group TitleBest ResponseYou've already chosen the best response.1
is Cp defines as dh/dT or we get it somehow because p=const?
 one year ago

ghazi Group TitleBest ResponseYou've already chosen the best response.3
yep, Cp is specific heat capacity at constant pressure, and change in enthalpy at with temperature is the same quantity , for ideal gas dh=CpdT and gamma = Cp/Cv
 one year ago

gorica Group TitleBest ResponseYou've already chosen the best response.1
ok. I will read this all again and if I have more questions, I will write them tomorrow, ok? :) thank you again :)
 one year ago

gorica Group TitleBest ResponseYou've already chosen the best response.1
do you maybe have graphs of isotherms of Van der Waals gas and real isotherms and something about thermometer with thermocouple, I can't find it on internet?
 one year ago

ghazi Group TitleBest ResponseYou've already chosen the best response.3
http://bcs.whfreeman.com/chemicalprinciples3e/content/lgraphs/E3004.html
 one year ago

gorica Group TitleBest ResponseYou've already chosen the best response.1
:) thanks :)
 one year ago
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