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Thermodynamics

Thermodynamics What is thermodynamics?Thermodynamics studies heat, temperature, and energy, and how they transform from one form to another. It rests on a small number of established laws that hold in every physical system ever tested.The zeroth law: why temperature makes sense at allIf object A is in thermal equilibrium with object B (meaning no heat flows between them when placed in contact — they're at the same temperature), and B is in thermal equilibrium with C, then A is also in thermal equilibrium with C. This might sound obvious, but it's what justifies the entire concept of temperature as a single, comparable number: it guarantees that a thermometer, placed in equilibrium with an object, gives a reading that meaningfully compares to any other object measured the same way.…

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