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The constancy of the value of the product of pressure and volume for a closed system (PV) at constant temperature is useful in establishing a definition of temperature and allows the extrapolation of the temperature scale to a thermodynamic "absolute zero".

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1w ago

The constancy of the product of pressure (P) and volume (V) (PV) represents the conservation of energy in an ideal gas system. This means that the product of pressure and volume remains constant as long as the temperature stays constant, indicating that the system is in a state of equilibrium. This relationship is known as Boyle's Law in ideal gas systems.

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Q: What is the physical significance of the constancy of the various values of PV?
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