Zeroth law of thermodynamics | Chemical Processes | MCAT | Khan Academy
khanacademymedicine・6 minutes read
The 0th Law of Thermodynamics establishes thermal equilibrium between objects, defining a universal temperature scale that simplifies thermodynamic calculations and ensures that objects at the same temperature do not transfer heat. This fundamental law dictates that if object one is in thermal equilibrium with object two, and object two is in thermal equilibrium with object three, then object one is also in thermal equilibrium with object three, shaping our understanding of heat transfer and temperature measurement on a universal scale.
Insights
- The 0th Law of Thermodynamics establishes the concept of thermal equilibrium, where heat transfer ceases between objects, leading to a universal temperature scale for simplifying thermodynamic calculations.
- Objects in thermal equilibrium with each other, as outlined by the 0th Law, ensure a transitive property where if object A is in equilibrium with object B, and object B is in equilibrium with object C, then object A is also in equilibrium with object C, emphasizing a fundamental principle of temperature equality.
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What is the 0th Law of Thermodynamics?
The 0th Law addresses thermal equilibrium between objects.
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Thermodynamics
Summary
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Universal Temperature Scale: The 0th Law
- The 0th Law of Thermodynamics addresses thermal equilibrium, where heat stops transferring between objects, indicating they are in thermal equilibrium.
- If object one is in thermal equilibrium with object two, and object two is in thermal equilibrium with object three, then object one is also in thermal equilibrium with object three, as per the 0th Law of Thermodynamics.
- The 0th Law allows for the definition of a universal temperature scale, ensuring that objects at the same temperature will not transfer heat when in contact.
- Our universe follows the 0th Law of Thermodynamics, enabling the establishment of a universal temperature scale that simplifies thermodynamic calculations.
- Named the 0th Law due to its fundamental role in defining a universal temperature scale, preceding the already established 1st Law of Thermodynamics in the field.
