This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Threesystemsforzerothlawofthermodynamics.svg en Illustration of three systems for the section on the zeroth law of thermodynamics on the German own Clickingban Other fields Cczero Thermodynamic diagrams Thermodynamic systems
Page 2023 Free-images.com. All images are Public Domain