- #1
muzialis
- 166
- 1
Hi All,
I have a question on entropy.
I had some eposure to classic thermodynamics and I remmebr the entropy being defined as the integral of dq / T ("differential" heat / absolute temperature).
Hence for any adiabatic transformation the entropy change is zero.
Then I came across a different definition, involving the logarithm of the possible number of states, with its related ideas of order, disorder, time arrow, etc.
I tried to understand more and so far I am not even sure the two are equivalent.
Indeed one can imagine a system where work is done, achieving some level of order improvement, istill n adiabatic condiitons.
I understand this being a trivial argument and would welcome any help, reference or comment.
Thank you and Best Regards
Muzialis
I have a question on entropy.
I had some eposure to classic thermodynamics and I remmebr the entropy being defined as the integral of dq / T ("differential" heat / absolute temperature).
Hence for any adiabatic transformation the entropy change is zero.
Then I came across a different definition, involving the logarithm of the possible number of states, with its related ideas of order, disorder, time arrow, etc.
I tried to understand more and so far I am not even sure the two are equivalent.
Indeed one can imagine a system where work is done, achieving some level of order improvement, istill n adiabatic condiitons.
I understand this being a trivial argument and would welcome any help, reference or comment.
Thank you and Best Regards
Muzialis