Entropy of Heating

[@shrivanthreddy4518]

dose monoatomic cu atoms have 6 degrees of freedom (3linear & 3vibrational) is that the reason why Cp = 3R

[@PhysicalChemistry]

Single atoms have 3 (translational) degrees of freedom. (These are 3 dof for their position; depending on how you count, you may also consider three additional dof for their velocity.) That is, indeed, why the heat capacity is 3R. Here is a video about counting degrees of freedom: kzbin.info/www/bejne/eaHWiH6jirmUiqM And here is one about the heat capacity of monatomic solids: kzbin.info/www/bejne/oGnVdnlnaruChMk

[@한두혁]

Hello sir! I have a question... So there are two equations that relate entropy to temperature. Which are derivative of S with respect to T holding V & P respectively. Then is it true that S is S(T,V) , S(T,P) each?

[@PhysicalChemistry]

Yes, that's correct. When you write S(T,V), you're viewing the entropy as a function of T and V. But it's also fine to write S(T,P), in which case you're viewing the entropy as a function of T and P.

[@한두혁]

Hello. thank you for the comment! I got it