# Are Newton's Laws of physics compatible with thermodynamics?

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Good day friends. I want to know and ask you if Newton's laws are incompatible with thermodynamics.

## Answers and Replies

PeroK
Homework Helper
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Good day friends. I want to know and ask you if Newton's laws are incompatible with thermodynamics.
Classical thermodynamics is built on Newton's laws.

russ_watters, vanhees71 and Dale
What a question, haha! I will suggest another question to you that you can look into. How, given the time-symmetric equations of motion in both classical (Newton's physics) and quantum physics, can the arrow of time (thermodynamics) arise?

dextercioby and vanhees71
Dale
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Good day friends. I want to know and ask you if Newton's laws are incompatible with thermodynamics.
They are compatible. Do you have some reason for thinking they are not?

russ_watters and vanhees71
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I want to know and ask you if Newton's laws are incompatible with thermodynamics.
Thermodynamics can be derived from Newton's laws using the methods of statistical mechanics so they are unarguably compatible. Perhaps you are asking about the apparent incompatibility because Newton's laws are time-symmetric (there are no irreversible processes) whereas thermodynamic laws are not?

The resolution of this apparent paradox lies in the statistical nature of thermodynamic predictions.

vanhees71