zeroth law

Question

Zeroth law of thermodynamics establishes the concept of?

RankGuru · Accepted Answer

1. **Statement**: If two thermodynamic systems A and B are each in thermal equilibrium with a third system C, then A and B are in thermal equilibrium with each other.
2. **Conceptual Outcome**: This law provides the physical basis for the concept of **temperature**.
3. **Property**: It allows us to use system C as a 'thermometer' to compare the temperature of other systems without bringing them into direct contact.
4. **Conclusion**: The law formally defines **thermal equilibrium** (a state where no net heat flows between systems even if they are in contact).

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Zeroth law establishes concept of: